oryktologika nea-news on minerals ,july-august 2015

-NEWS ON MINERALS - 1 - Vol 30 - 178 - 2015

NEWS ON MINERALS

Vol. 30 , No 178 , July-August 2015 30 , 178 , 2015

15€ - Price of each issue 15 €

- HELLAS - PIRAEUS ISSN 1011-5870

-NEWS ON MINERALS - 2 - Vol 30 - 178 - 2015 Opals from Australia –

. , , ) (From the collection of Mr. Vassilis Giourmetakis , Melbourne , Australia)

Front and back side of Black opal with blue-green colors , Australia . 8 carats

, 8

, 20 - Black opal from Australia , 20 carats

, 16,5 - Black opal from Australia , 16,5 carats

Alexandra G. Minatidou

–NEWS ON MINERALS GeMin .

The Inspirer and the Soul of ORYKTOLOGIKA NEA -NEWS ON MINERALS and GeMin Expo in GREECE Die Instigator und die Seele der ORYKTOLOGIKA NEA-NEWS ON MINERALS und GeMin Expo in GRIECHENLAND


ORYKTOLOGIKA NEA NEWS ON MINERALS

ISSN 1011-5870 1986

Established in January 1986)

Editor and Owner : Dimitris G. Minatidis , M. Sc. , AGCC

Geologist-Geochemist Leof. Gr. Lambraki 70 ,

Piraeus EL-185 32 , HELLAS Tel Mobile : +30- 6979771898 Tel. Land : +30-213-025-8688

FAX :+ 30-210-4132-570 e-mail : [email protected] ,

[email protected] Web : www.gemin.eu

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Previous volumes: 1-14 (years 1986– 1999) in paper form , 80 EURO/volume Vol. 15-29 (Years 2000-2014) , available in CD at 400 Euro/CD

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ORYKTOLOGIKA NEA -NEWS ON MINERALS

sponsor the GeMin International Mineral , Gemstone , Jewellery and Fossil Exhibition held every year in Hellas since 1987.

-

- NEWS ON MINERALS

Opinions expressed by the authors do not necessarily represent opinion of

ORYKTOLOGIKA NEA -NEWS ON MINERALS

– Photo in cover

Boulder Opal from Australia 3 carats

(From the collection of

Mr. Vassilis Giourmetakis) , Melbourne , Australia

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30 ,

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-NEWS ON MINERALS

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, GeMin ,

. . During our 30-year plus involvement with minerals, fossils and gems and promotion of knowledge about them, we have come in contact either directly or through Friends with Greeks abroad who are very active in this topic: Minerals , Gemstones and Fossils. We want to encourage all those Greeks living abroad to invest in Greece . This is why ORYKTOLOGIKA NEA NEA-NEWS ON MINERALS will continue to act as a link between all these Greeks around the world and are active in this field . Our first aim to attract the attention of young people to this Hobby and urge people to be more observant in the filed , has been satisfactorily achieved. In other words we "stimulated the interest 'of many Greeks for minerals, fossils and gemstones. We think the time has come for Greek Businessmen active on Earth Sciences abroad to join us - through their participation - in this consistent and continuous effort in Greece for the further development of the Hobby on the collection and study of Minerals, Fossils of and gemstones in Greece , supporting thus and serving the Gemstone Industry. We wish to thank our subscribers , exhibitors of GeMin, all Friends and Partners in Greece and other countries who are our oxygen and God who gives us the strength to continue. Dimitris G. Minatidis


Seminars on Mineralogy by ORYKTOLOGIKA NEA-NEWS ON MINERALS

You can make your registration directly via Web Portal :

http://www.goseminars.gr/index.php/component/eventbooking/energeia-perivallon/perivallon-a

:

http://www.goseminars.gr/index.php/component/eventbooking/energeia-perivallon/perivallon-a


Fine mineral specimens from various areas of the World ( Acrylic base is 5 x 5 x 1 cms)

(GeMin and ORYKTOLOGIKA NEA-NEWS ON MINERALS ,Piraeus ,Greece)

Botryoidal Fluorite , Kunzite from Nuristan,Afghanistan Czech Republic

Gem botryoidal transluscent Adamite (mostly) , Lavreotiki area , Greece Smithsonite from Lavreotiki area, Greece

Azurite , malachite , Lavrion , Greece Cavansite on microstilbite , India


Your most integrated contact in the Republic of Belarus

Use the friendly phrase : We found you in ORYKTOLOGIKA NEA-NEWS ON MINERALS

: – NEWS ON MINERALS


- SHOWS – –SHOWS – 2015

Exploring the wonder of the Earth's mineral treasures through collecting, preparing and sharing of

mineral specimens , gemstones and Fossils.

USA –Herkimer, N.Y. : 18-19 July . Info : [email protected] Austria-Radenthein : 24.- 25.7.2015 - 22. Radentheiner Mineralientage. Stadtsaal. Info : Tel. 0043-699-10905577, e-

mail: [email protected] , www.radenthein.com Russia – St. Petersburg : 30 July – 2 August . Info : [email protected] UK-London : 1-2 August 2015 . Info : e-mail: [email protected] . Hungary – Budapest : 28 – 30 August 2015. 28.Info :Tel. 0036-1269-4040, Fax 0036-13312-576,

e-mail: koorszag@ koorszag.hu . Slovakia - Bánská Štiavnica : 11- 12 September 2015 . Info : Tel. +421 905 639 954; e-mail:

[email protected] Italy-Perticara : 20 September 2015 , Perticara Mineral show . Info : [email protected] Austria-Wien : 3 - 4.10.2015 „MINERALIUM WIEN“. Wiener Stadthalle. Info :Tel. 0043-680-3331388, e-mail:

[email protected] , www.vmoe-wien.at . USA-Albuquerque , N.M. : 2-4 October 2015 . Contact Info: Jay Penn 505 883-4195 Germany – Munich , 30 Oct- 1 Nov. 2015 . The Munich Show - Mineralientage München-World of Minerals, Gems,

Jewellery and Fossils . Info : +49 (0) 89-613 47 11 e-mail : [email protected] Greece - Athens : 29th GeMin 2015 , 4-5-6 December 2015 . Information : GeMin, c/o ORYKTOLOGIKA NEA -

NEWS ON MINERALS ,Gr. Lambraki 70 , Piraeus, EL-18532, Hellas. Tel+30-213-025-8688 , FAX:+30-210-4132-570 , e-mail : [email protected] , http://www.gemin.eu .Tel+30-213-025-8688 , FAX:+30-210-4132-570 .

Some more Boulder Opals and black opals from Australia . , , )

(From the collection of Mr. Vassilis Giourmetakis , Melbourne , Australia)

A B A. Boulder opal , Australia 18,5 carats B. Boulder Opal , Australia ,14 cts

Black Opal , 19 carats


2015

-NEWS ON MINERALS

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» , 5 2015 . 29 GeMin 2015 4-5-6 2015.

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-NEWS ON MINERALS , [ 2015 ] , . 70 . ) , 185 32

International Geological Photography Contest 2015

ORYKTOLOGIKA NEA-NEWS ON MINERALS invite all readers and collectors to get during their vacations a geological , mineralogical photograph , print it in A4 size photographic paper with description of depicted object , name and full contact information of photographer and send it to ORYKTOLOGIKA NEA-NEWS ON MINERALS with the indication “Geological photography Contest” until 5 November 2015 . All submitted photographs will be on display during the 29th GeMin 2015 to be held in Athens , Greece on 4-5-6 December 2015. Visitors will vote for the best photographs and the first 3 winners will win Minerals or Gemstones or Fossils. Best of luck to all of you ! The contest is heavily relied on mineral specimens , crystals , fossils but Geowonders are also sought most for. May be submitted up to 3 photos per contestant ORYKTOLOGIKA NEA-NEWS ON MINERALS , [ For the Photography Contest 2015 ] , Leof. Gr. Lambraki 70 , (Formerly Queen Sofia Avenue), Piraeus , EL-18532 , Greece.

Boulder Opal from Australia

Precious opal that is attached to its host rock (a non-opal) in the form of a layer or seam. Boulder opal is an example of this. The opal is attached to a brown, iron-stained sandstone.

(Boulder Opal) (

) . , .

Boulder opal 34,5 carats , 25x18x5 mm

- Opal

Iron-stained sandstone


Stay tunned with the only Magazine for Mineral ,Gem and Fossil

Collectors in Greece



LEARN ON THE MINERAL WEALTH OF THE COUNTRIES VIA MINERAL POSTAGE STAMPS

,

, . The best gift for the students and the newcomer in the collection of mineral, gemstone and fossil postage stamps .

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-Another way to attract the interest of junior and senior Mineral,Gem and Fossil Collectors is the collection of postage stamps depicting Minerals, Gems and Fossils

** Mineral Wealth of Hellas , Mint Set , 7 stamps (1980) 10 EURO ppd

** First Day Cover (F D C) 12 EURO ppd.

** Maximum Cards on the same topic 75 EURO ppd (Total number of sets in circulation 500-Limited offer).

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GeMinCOMMEMORATIVE COVER ON THE 20 YEARS JUBILEE OF GeMin EXHIBITION

- -NEWS ON MINERALS

20 GeMin. -NEWS ON MINERALS . 5€.- On the occasion of 20 years of GeMin

Exhibition in Athens , Hellas , ORYKTOLOGIKA NEA-NEWS ON MINERALS have released a Geophilotelic Document cancelled at the National Philotelic Museum. The commemorative cover will be available by this publication until end of stock. Price 5 €.

ORYKTOLOGIKA NEA-NEWS ON MINERALS :

Your best source on Geophilotelism in Hellas-


No comments ! Just the Best !

-NEWS ON MINERALS - 13 - Vol 30 - 178 - 2015 YOUR MINERAL ,GEMSTONE ,JEWELLERY AND FOSSIL SOURCE DOWNTOWN PIRAEUS , GREECE

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In our shop “ -Design” , downtown Piraeus , you will find a selection of fine mineral specimens from various parts of the

World ,fossils as well as top gemstones and hand-made sterling silver 925 gemstone jewellery. When in Piraeus , Greece , come and visit us.

“ -Design” ,

, . , .

_________________________________________________________________________________________________________ Visit our new Mineral shop downtown Piraeus –

« » , , « -Design» , ,

« » , , , : « ». « » .

We continue the tradition : “Quality is more important than quantity” ! Visit our new shop downtown

Piraeus and choose Natural Genuine Earth Treasures from around the World ! - Design» along with ORYKTOLOGIKA NEA-NEWS ON MINERALS shop

-NEWS ON MINERALS - 14 - Vol 30 - 178 - 2015 Foliated rock specimen from Salamina Island , Saronikos Gulf , Greece

« » . A classic example to describe and interpret textural and compositional features of metamorphic rocks The planar structure results from the flattening of the constituent grains of a metamorphic rock. Foliation can result from differential stress.

Front side of the specimen – . , )

Back side of the specimen –

Flat view of the foliated rock specimen Close up photograph of the texture of the foliated rock specimen


, . Map of Salamina Island , Greece , where kallaine-colored arrow shows the location of the collected foliated rock sample

(Map : Courtesy Google Earth )

( )

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In our over the thirty years of involvement with the Geology , we have repeatedly expressed the view that despite the great development and connection of computers (Great help) in Geology, a correct observation in the field remains even nowadays the main tool of the Geologist. So keep your eyes open to any peculiar formation made by Earth.

-NEWS ON MINERALS (issn 1011-5870) 30 ( 1986 ) , , , ,

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1. ( ) -NEWS ON MINERALS , 30

(PDF) 25 . 2. GeMin ,

29 ( 1987 ) .

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– Two more words on Opal Opal is a mineral species with an amorphous structure. It's composition is silicon dioxide with a variable amount of water. The amount of water (H2O) is usually between 2-10% by weight, although contents as high as 20% have been recorded. When opals undergo dehydration as a result of exposure and time they have a tendency to become crazed, showing minute cracks on the polished surfaces. The Australian Gemstone Industry Council has established nomenclature and classification standards for all types and origins of opals, This classification has been adopted internationally. Opals can be classified into 2 basic categories: Precious Opal : Any opal displaying play-of-colors. This phenomenon is caused by the diffraction of white light thru a microscopic, orderly arrangement of silica spheres. This category includes white, black and boulder opal. Precious opal can be further distinguished by types: Type 1: A single, solid piece of precious opal, having a uniform appearance and composition. This is the type of opal most commonly used for jewelry Type 2:Precious opal that is attached to its host rock (a non-opal) in the form of a layer or seam. Boulder opal is an example of this. The opal is attached to a brown, iron-stained sandstone.

A B A Boulder opal 34,5 carats , 25x18x5 mm - B Boulder Opal 20,5 carats

Type 3: Matrix opal occurs when precious opal fills cracks and openings in the host rock. The opal forms in pre-existing clay or sandstone. This material is frequently dyed. Doublets & Triplets: These assembled stones are not considered natural opals, although they do contain a layer of natural opal.

A B Opal doublets : A. doublet 5,5 carats , 12x15x1,5 mm B doublet 6 carats , 12x15x2 mm

Common Opal or Potch : These are varieties of opal that do not show a play-of-color. Although they share the same chemical composition as precious opal, the silica spheres they contain are randomly arranged.

(Treatment)

, , .

(treatment) : *Treatment with aniline dye, silver nitrate, or sugar carbonized with acid.

, ) *Impregnation with oil, wax, or plastic.

, ) *Smoke impregnation.

)

-NEWS ON MINERALS - 17 - Vol 30 - 178 - 2015 *Impregnation with black plastic.

) *Backing with foil, black paint, or laquer.

, ) ( Gilson Chatham

)

(We thank Mr. Ryan , Product Development Department of Sanwa Pearl & Gems Ltd , Hong Kong

for their permission to publish the above color chart of Synthetic Opal . Ryan Sanwa Pearl & Gems Ltd ,

)

)

(Slocum Stone: Glass Imitation (separation: magnification, RI, SG) Japanese Plastic with Play of Colors (separation: SG, Hardness: pressure with a pin will make a slight indentation) )

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Opalite is a trade name for synthetic opalised glass and various opal simulants.

, . 1,5 . 1,5 . 1 In the above photographs A , B and one can see triplets of Natural Opal from Australia

1

1

TABLE 1

In the Table 1 on the left various synthetic opals

are seen.


« » (

« ») , , .

(doublet) (triplet) . ;

,

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. Opal triplets To provide our readers an idea in regard to certain "secrets" of opal (any gemstone has its own "secrets") we mention that the opal is beautiful and rare stone, but it is very sensitive to temperature, vibration, etc. As a result of this sensitivity was the creation opal doublet and opal triplet . What are the opal triplets? The structure of the opal triplet shown in the diagram above At the base of the opal triplet is used onyx, on top of the onyx opal is placed and on top the whole structure clear quartz is mounted . The quartz cap acts also as a magnifier to magnify and shows better highlights of the colors of opal.Me With the evolution of the art synthetic opal is not easy sometimes to distinguish between natural opal triplet and synthetic opal triplet.

Clear Quartz cap

– Opal

– Onyx base

OPAL IN STAMPS –

,1973

, 1995

, 1998


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Bleiben Sie in Kontakt mit einem der besten Zeitschriften in Edelstein und Schmuckindustrie


FROM THE GALLERY OF ORYKTOLOGIKA NEA-NEWS ON MINERALS

- Minerals of the World (ISBN 0-444-42135-1)

- 200 , , . 80 130 . . :

85 € , . - A laminated wall chart 80 X 130 cms with photographs of 200 minerals and plentity of data on crystal systems and other mineralogical information. A top educational product for every school , Mineralogical Laboratory , and professionals . Price : 85 EURO including packing , lamination and shipping.

– THE HELLENIC FLAG

– A REAL JEWEL -NEWS ON MINERALS:

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MINERALS - 2009 , Badakshan ,

( ) : 213 -025-8688 , 6979771898 , FAX : 210- 4132- 570 , [email protected] on-line - Buy on-line : http://www.gemin.eu/el/gallery38.htm

The wonders of Rocks and

Minerals

- CD-ROMs

, - NEWS

ON MINERALS. 1. The Wonders of Rocks and Minerals 2. The Study of Minerals -Two of the best CD-ROMs on Mineralogy are available by ORYKTOLOGIKA NEA-NEWS ON MINERALS . These wonderful and very informative CDs are available at 165 EURO + 10 EURO shipping and handling Write now to : ORYKTOLOGIKA NEA-NEWS ON MINERALS , FAX : +30-210-4132-570 , [email protected], [email protected]

The Study of Minerals


Opals from Australia –

– Mining Lamps for Collectors

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- Collect a piece of History. Add in your Mineral and Gemstone Collection a perfect copy of a mining lamp which used to be (and is) the “right hand” of miners , that is , of all those people who work down under the Earth in adits and mining galleries to mine and bring in the surface the raw metalliferous and industrial minerals , so necessary to make our life more comfortable

Black Opal ,31,5 carats

Opal , 1,5 carats

Black Opal , 7,5 carats

Opal –

64,5 Carats / 45 x 35 x 5 mm

Yellow Opal- trillion cut 10 carats

20 x 18 x 8 mm

Yellow Opal - Oval faceted cut

9,5 carats

, 9,5

18 x 15 x 8 mm


, , , . +30 6938243500

Fossils from the collection of Anastassios Megas , Kalipolis , Piraeus , Greece

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Two prehistoric stone "tools" from the village Pentavryso Ptolemaida that led to the discovery of the elephant. In my opinion this is fossilized elephant feces.

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The arrow in the photograph above shows the area of Pentavryso Ptolemaida where those fossilized elephant feces were found

(Map courtesy Google Earth)


: ( ippurites) , , . 1996.

Ippouritis (section) genus lamellibranch comprising ROUDIST family of Hippuritidae. Cretaceous period of the Mesozoic era. Found in Chaironeia 1996.

The arrow in the above map shows the area of Chaironeia ( ) , Greece , where excellent fossils

of ROUDISTS family of Hippuritidae have been found.

.

(Map , Courtesy Google Earth)


MACROURUS Limestone , Angelin (1854). Name - PHAPOSTOMA ELANDICUM. It was found in Brazil - 1995

Fossilien ordovicischer und silurischer Geschiebe , W.Neben H.H.Krueger ,

Staringia no. 2 (Staringia no 2: W. Neben en H.H. Krueger: Fossilien ordovicischer Geschiebe. Oldenzaal, 1973: platen 51-109., met register. (Duits) - http://www.geologienederland.nl/publicaties.html

– Some interesting papers on Economic Geology – Paleontology - Geochemistry

Tectono-metallogenic systems - the place of mineral systems within tectonic evolution, with an emphasis on Australian examples

Original Research Article Ore Geology Reviews, Available online 13 September 2015, Pages David L. Huston, Terrence P. Mernagh, Steffen G. Hagemann, Michael P. Doublier, Marco Fiorentini, David C. Champion, A. Lynton Jaques, Karol Czarnota, Ross Cayley, Roger Skirrow, Evgeniy Bastrakov

GIS as a Support Tool in Regional Management of Rock Mineral Resources – Experiences from SW Poland Original Research Article Procedia Earth and Planetary Science, Volume 15, 2015, Pages 488-494 Katarzyna Pactwa, Jan Blachowski, Justyna Górniak-Zimroz

The Potential of Indigenous knowledge for Rio Coco Geopark Geotourism Original Research Article Procedia Earth and Planetary Science, Volume 15, 2015, Pages 886-891 Martina Pásková

Cretaceous amber inclusions of Spain and Myanmar demonstrate early diversification and wide dispersal of Cephenniitae (Coleoptera: Staphylinidae: Scydmaeninae) Original Research Article Cretaceous Research, Volume 57, January 2016, Pages 190-198 Pawe Ja oszy ski, David Peris

Directional changes of the geomagnetic field in West Africa: Insights from the metallurgical site of Korsimoro Earth and Planetary Science Letters, Volume 430, 15 November 2015, Pages 349-355 Fabio Donadini, Vincent Serneels, Lisa Kapper, Akram El Kateb

Modeling the effect of subgrain rotation recrystallization on the evolution of olivine crystal preferred orientations in simple shear Earth and Planetary Science Letters, Volume 430, 15 November 2015, Pages 356-366 Javier Signorelli, Andréa Tommasi

Fault mirrors along carbonate faults: Formation and destruction during shear experiments Earth and Planetary Science Letters, Volume 430, 15 November 2015, Pages 367-376 Shalev Siman-Tov, Einat Aharonov, Yuval Boneh, Ze'ev Reches

Red Sea isolation history suggested by Plio-Pleistocene seismic reflection sequences Earth and Planetary Science Letters, Volume 430, 15 November 2015, Pages 387-397 Neil C. Mitchell, Marco Ligi, Eelco J. Rohling

Crystallographic control on the boron isotope paleo-pH proxy Earth and Planetary Science Letters, Volume 430, 15 November 2015, Pages 398-407 J. Noireaux, V. Mavromatis, J. Gaillardet, J. Schott, V. Montouillout, P. Louvat, C. Rollion-Bard, D.R. Neuville


– From Europe STA NERALOG CA TAL

Are you interested on what is happening in Italy, in Europe n minerals , events, new finds, exchange of mineral specimens ? Subscribe now to : RIVISTA INERALOGICA ITALIANA , Museo Civico di Storia Naturale , Corso Venezia n. 55 , -20121 Milano , Italy. Excellent color photos and for each article in Italian , there is an extensive abstract in English and German. Four (4) issues per year.

nnual Fees : 35 EURO , Overseas: US $ 45- U.K. JOURNAL OF MINES AND MINERALS

Information-News and Reports on British and other European Localities. Published twice yearly. Two issues EUROPE 30 € , USA $30 , AUSTRALIA $40 , Other Countries 17 . Remit to : Mrs J. C. Spence , 3 Oak Tree Road , Bawtry , Doncaster , South Yorkshire , ENGLAND Tel: (0302)-710244

Gems & Jewellery , The Gemmological Association of Great Britain , 27 Greville Street , London EC1N 8TN , UK [email protected] www.gem-a.com

Mineraux & Fossiles LE GUIDE DU COLLECTIONNEUR Subscribe now and keep in touch with French collectors and Geoscientists. Mineraux & Fossiles, 6 av Ren Cassin , F13620 Carry-Le- Rouet France Telephone: 33 (0)4 42 44 99 30 Fax: 33 (0)4 42 45 37 33 Schweizer Strahler Le Cristallier Suisse l Chavacristallas Svizzer Il Cercatore Svizzero di Minerali The Swiss Prospector of Minerals Are you interested to keep informed on mineral localities in Alps and Central Europe ? Subscribe to the Swiss rospector of Minerals. Write now to :

REDAKTION , SCHWEIZER STRAHLER , c/o Redaktion Schweizer Strahler , c/o Dr. Thomas Bolli , Pilatusstrasse 8 , CH-6033 Buchrain , Switzerland (HELVETIA) , [email protected]

' ).

-NEWS ON MINERALS : http://www.gemin.eu - LAPIS MINERALIEN WELT FOSSILIEN, BOCAMINA ,

S , WORLD OF STONES , o Le Regne Mineral, The Journal of the Russell Society -NEWS MINERALS ,

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From Australia : The Amateur Microscopist , Mike Dingley , P. O. Box A1017 , Sydney South P.O. , NSW 1235-Australia, e-mail : [email protected] or Glenn Matheson , 27 Petit St. , Port Macquarie , N S W 2444 , Australia . Tel.65821262 , e-mail: [email protected] .

From USA : The LAPIDARY JOURNAL : http://www.lapidaryjournal.com/ The Mineralogical Record : http://www.minrec.org/ GEMS & GEMOLOGY , www.gia.edu/gemsandgemology METEORITES! Visit a New Web Site for the Latest & Best Meteorite Deals in the Galaxy: www.meteoriteman.com or

write to : Robert A. Haag, P. O. Box 27527 , Tucson , AZ 85726 , USA Tel. 520-882-8804 , FAX:520-743-7225 , e-mail: [email protected] . The International Meteorite Collectors Association (IMCA Inc. : http://www.imca.cc/

From South Africa - SOUTH AFRICAN GEMS AND MINERALS MAGAZINE. : All you need to know on minerals of the Republic of South Africa South Africa : R60 postage paid Zimbabwe: R75 postage paid Overseas: Surface mail US $12 postage paid Overseas: Airmail US $ 16 postage paid. Send your order to : Sharon Flax Waddington , Editor: SAGM , 507 Dane Road, Glen Austin , South Africa 1685 [email protected] , lifeisthepresent@gmail , www.FOSAGAMS.co.za

From India - :

Journal of Gem & Jewellery Industry. Your best contact with India Gem Industry. "Journal House", A-95 Janta Colony, Jaipur 302 004 , India. Tel.91-141-614-398 , 610906 , 618002, 602900 FAX : 91-141-602973 , 564260 , 568233 , [email protected] website : http://www.diamondworld.net

Jewellery & Luxury , Possibly your best JEWELLERY connection with India . Mr. Raj Salian ( editor & publisher ) , www.jewelleryandluxury.com . e-mail : [email protected]



Orpiment from Quiruvilca District, Santiago de Chuco Province, La Libertad Department, Peru

(5 x 5 x 4 cms)

, - Aragonite from Lavreotiki area , Greece (5 x 6 x 6 cms)

oryktologika nea-news on minerals ,july-august 2015

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