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Jasper, a granular variety of quartz, is a mixture of quartz and iron oxide and may be formed in several colors ...More |
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Malachite is a beautiful green copper ore with irregular black banding and consists of copper oxide, carbon dioxide and water ...More | |
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Quartz is the hardest of all common minerals. It has a clear, glassy, appearance. Rose quartz is coarsely crystalline ...More |
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The formation of a pearl can be likened to the struggle of each person - the growth from humble beginnings ...More | |
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This is a fine specimen of Tiger's Eye, or simply Tiger Eye. The iron oxide staining gives it yellow and golden brown stripes ...More |
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Pearls are considered a classic piece of jewelry. They are of course formed in a shellfish in reaction to an irritant ...More |
