rock.petro.edit

1. IGNEOUS ROCK

Peridotite

1

Picrite                                                                                     Photographs © Barry Marsh SOES

Granite  

Photographs © Barry Marsh SOES

2

Porphyritic granite 

Photographs © Barry Marsh SOES

Diorite

Photographs © Barry Marsh SOES

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Quartz-Diorite

  4

Gabbro

Photographs © Barry Marsh SOES                                       

Porphyritic rhyolite

Photographs © Barry Marsh SOES

5

Troctolite

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    6

Rhyolite 

Photographs © Barry Marsh SOES 

Andesite (porphyritic)

Photographs © Barry Marsh SOES

Andesite

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Basalt  

8

Photographs © Barry Marsh SOES 

Porphyritic basalt  

Photographs © Barry Marsh SOES

9

Porphyritic Microgranite 

Photographs © Barry Marsh SOES 

Porphyritic trachyte 

Photographs © Barry Marsh SOES                                                                     

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Trachyte

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Obsidian

Photographs © Barry Marsh SOES

Pumice

Photographs © Barry Marsh SOES

Scoriaceous lava

12

Photographs © Barry Marsh SOES

Amygdaloidal basalt 

Photographs © Barry Marsh SOES

Pyroclastics /  Volcanic ash (top), Lapilli (bottom)   (also see thin section of  Tuff  and

13

hand specimen of Tuff)

Photographs © Barry Marsh SOES 

Tuff ) Photographs © Barry Marsh SOES

Tuff

.

14

Agglomerate

15

Photographs © Barry Marsh SOES                                                      

Dolerite

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Syenite

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Ignimbrite

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2. METAMORPHIC ROCK 

Spotted Slate  (Photoraph © Barry Marsh SOES

Chiastolite Slate Photograph © Barry Marsh SOES 

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Slate 

Photograph © Barry Marsh SOES 

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Cordierite-Andalusite-slate

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Quartzo-feldpathic hornfels ) Photograph © Barry Marsh SOES 

Quartzite

Photograph © Barry Marsh SOES 

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Cordierite-Hornfels

Garnet-Hornfels 25

Phyllite

Photograph © Barry Marsh SOES

Semi-pelitic schist 

Photograph © Barry Marsh SOES

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Augen gneiss

Photograph © Barry Marsh SOES 

Amphibolite 

Photograph © Barry Marsh SOES 

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Amphibolite 

Photograph © Barry Marsh SOES 

Epidote Amphibolite   Photograph © Barry Marsh SOES 

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Eclogite  

Photograph © Barry Marsh SOES 

Amphibolite

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Staurolite schist 

Photograph © Barry Marsh SOES 

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Calc-schist  Photograph © Barry Marsh SOES 

Garnet-mica-schist

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Chlorite schist 

Photograph © Barry Marsh SOES 

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Garnet Amphibolite  

Garnet-Amphibolite

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Marble

Photograph © Barry Marsh SOES 

Marble (impure)

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Kyanite-gneiss

36

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ROCK AND HANDSPECIMENFROM

SHOUTHAMTOM

COMPILED BY

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