Mineral Guide
Gems
How the Earth was Formed
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Mining of Metals
Minor Gems
Ores
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Precious Stones
Agate gem stone
Amber gem stone
Beryl gem stone
Birth Stones
Chrysolite gem stone
Crystalline Quartz gem stones
Diamond gem stone and Corundum
Black Diamond Carbonado picture
Bort picture
Cut Ruby picture
Cut Sapphire picture<
Diamond in Matrix picture
Diamond picture
Ruby Crystal picture
Sapphire Crystal picture
Spinel Crystal Balas Ruby picture
Spinel Crystal Rubicelle picture
Epidote gem stone
Feldspar gem stone
Garnet gem stone
Lapis Lazuli gem stone
Malachite gem stone
Obscurely Crystalline Quartz gem stones
Opal gem stone
Ornamental gem stones
Topaz gem stone
Tourmaline gem stone
Turquoise gem stone
Quartz and the Silicates
Useful websites
Mineral Guide
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Precious Stones
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Diamond gem stone and Corundum
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Cut Sapphire picture
Cut Sapphire picture
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