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Published byBrendan Leonard Modified over 9 years ago
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Mineral Specimens
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Magnatite Strongly Magnetic Form of Iron Ore
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Hardness 1- 2
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Pyrite Brass Yellow Cubic “Fool’s Gold” Form of Iron Ore
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Chalcopyrite Yellow Brass Purple “Peacock Ore” Form of Iron Ore
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Galena Gray S.G. = 7.5 Cubic Form of LEAD Ore
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Limonite Yellow-brown to rust Hardness = 5.5 Form of Iron Ore
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hematite Red to Brown Streak Form of Iron Ore Shiny when polished
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Orthoclase Cleavage Planes at 90
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ORTHOCLASE (cont)
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Quartz HEXAGONAL 6 Crystals Shell-like Fracture
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Citrine Amethyst Rose Smoky
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Olivine Shades of Green Peridot birthstone
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Halite Colorless to White Salty Taste
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Calcite Hardness = 3 “Scale” in water Triclinic
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Calcite may DOUBLE REFRACT
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Gypsum Hardness = 2
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Talc Hardness = 1 Greasy luster
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Muscovite Cleavage in flat sheets
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Fluorite 8 sided cleavage
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Fluorite samples
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Augite 2 Cleavage planes @ 90 Black
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Corundum HEXAGONAL 6 crystals Hardness = 9 Red = RUBY Other = Sapphire
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Garnet Reddish Brown Brittle
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Shell-like Fracture Petrified Wood
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Black Cleavage in flat sheets
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Shell-like Fracture
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minerals NATURAL LIGHT UV Light
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