Unclassified
Chalcedony
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Unclassified
Chalcedony
Microcrystalline or cryptocrystalline form of silica
epic · Q170448
Related cards · group or class of minerals
See all 160
Unclassified
Amethyst
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_2.jpg/330px-B%C3%A9ryl_var._%C3%A9meraude_sur_gangue_(Muzo_Mine_Boyaca_-_Colombie)_2.jpg)
Unclassified
Emerald
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_(32734668126).jpg/330px-Malawi_Agate_(Malawi%2C_southeastern_Africa)_(32734668126).jpg)
Unclassified
Agate
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Unclassified
Feldspar
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Meta topics
Alabaster
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.jpg/330px-Electrum_on_quartz_Telluride_(cropped).jpg)
Concepts
Electrum
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