COLLECTIONS
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GREEN GOLD
Quartz is the second-most-abundant mineral in Earth's continental crust, after feldspar. Its...
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PETOSKEY STONE
Petoskey stone is a rock and a fossil, often pebble-shaped, that is...
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Quartz (Blue)
Quartz is the second-most-abundant mineral in Earth's continental crust, after feldspar. Its...
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Quartz (Negative)
It is a rare type of quartz, is called negative because of...
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Quartz (Several)
Quartz is the second-most-abundant mineral in Earth's continental crust, after feldspar. Its...