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Blue Tide Seam Agate
Blue Tide seam agate is one of the newest finds in Garut,...
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Botswana Agate
Botswana Agate is a rock consisting primarily of cryptocrystalline silica, chiefly chalcedony,...
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Boulder Opal
Boulder Opal is from Queensland in Australia and is brown in colour,...
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Brazil Agate
The agates from Brazil are mostly mined from decomposed volcanic ash and...
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Brecciated Opal Jasper
Form of Brecciated Jasper in which the cementing material is Opal. "Brecciated"...
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Brekian Jasper
Jasper, an aggregate of microgranular quartz and/or chalcedony and other mineral phases,...
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Bristlecone Pine Oolytic Limestone
Oolytic limestone Fossil Algae is from the from White Inyo Mountains north of...
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Butterfly Jasper
Butterfly Jasper is a stone that is mined in Mexico. It is...
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Cactus Agate
Agate is a rock consisting primarily of cryptocrystalline silica, chiefly chalcedony, alternating...
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Caddis Fly Agate
Caddis Fly Agate is the fossilized eggs of the caddis fly that...
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Cady Mountains Moss Agate
Moss Agate is a semi-precious gemstone formed from silicon dioxide. It is a form...
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Cady Mountains Seam Agate
Seam Agate is a rock consisting primarily of cryptocrystalline silica, chiefly chalcedony, alternating...
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Chalcedony
Chalcedony is a cryptocrystalline form of silica, composed of very fine intergrowths...
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Chalcedony Seam Agate
Chalcedony is a cryptocrystalline form of silica, composed of very fine intergrowths...
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Chalcopyrite
Chalcopyrite is a copper iron sulfide mineral and the most abundant copper...
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Champagne Agate
Champagne Agate or Pink Amethyst Agate is a rock consisting primarily of...
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Cherry Creek Jasper
Jasper, an aggregate of microgranular quartz and/or chalcedony and other mineral phases,...
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Chert with Chalcedony
Chert is a fine-grained sedimentary rock composed of microcrystalline or cryptocrystalline silica. Chalcedony is...
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Chevron Amethyst
Chevron Amethyst is a crystal mixture with white Quartz that can be...
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Chrysocolla
Chrysocolla is a hydrated copper phyllosilicate mineral with formula: Cu2−xAlx(H2−xSi2O5)(OH)4·nH2O (x<1)or (Cu,Al)2H2Si2O5(OH)4·nH2O....
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Chrysoprase
Chrysoprase is a silicon dioxide mineral that that belongs to the chalcedony group...
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Citron Chrysoprase
Chrysoprase is a silicon dioxide mineral that that belongs to the chalcedony...