hematite fe2o3 minnesota, michigan, wisconsin, and canada found in volcanic rock and veins forms...
TRANSCRIPT
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Hematite
Fe2O3 Minnesota, Michigan, Wisconsin,
and Canada found in volcanic rock and veins forms near water to form
"blueberries" like those found on mars
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Hematite
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Hematite “Blueberries”
Mars “Blueberries”
Earth “Blueberries”
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Garnet
Si,O combined with Ca, Mg, Fe, and Al
Sri Lanka, South Africa, Virginia, California, and Brazil
Igneous and metamorphic rock. sometimes found in altered rock and metamorphasized limestone
Closely related to silicate minerals and often misclassified as a gem. Precious garnet is often found near diamonds in the "blue earth"
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Garnet
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Magnetite
Fe3O4 Colorado basic igneous, metamorphic and
sedimentary rock Only black ore that can easily be
picked up by a magnet
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Magnetite
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Potassium Feldspar
All are aluminum silicates (Al,Si) formed with K, Na, or Ca
North Carolina found in almost all igneous rocks
and rocks created from them Feldspars are the most abundant
minerals in the world, making up 60% of the Earth's crust. they are used mostly for ceramic glazes, flux enamels, and binders
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Potassium Feldspar
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Silver
Ag (natural element) is often found in long, twisted, branched clumps and in Ag2S compounds
Western US Natural Element Often a valuable bi-product of
lead, zinc, and other metal smelting
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Silver
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Copper
Cu (natural element) is most often found as a compound then smelted from its ores (CuS, CuFeS, CuO, CuAl, Cu2Co3(OH)2)
Chile, Peru, Cyprus, Democratic Republic of Congo, South Africa, Russia, and Australia. In the US, the southwest is most abundant
Natural element found most commonly in and near the veins of volcanic rocks. Some compounds can be formed by oxidation of the Cu.
Electrically conductive-often used for electricity.
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Copper
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Gold
Au (natural element)
Mostly found in South Africa but some is mined in South Dakota and Nevada (western US)
Natural element found in quartz veins, sometimes found with pyrite. Can also be found in metamorphic rocks and as deposits in sedimentary rocks
Very soft-often alloyed with Cu to make it harder and spread it further in jewelry
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Gold
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Project
Grow crystals using “space growth kit”
When crystals are formed, create a piece of wire jewelry to complement your stones
Hypothesize which elements created your gems, and what gems they may be
Discuss hypothesis and results with the class