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Glittering
Stones >> Semi
Precious Stones >> Agate
Semi Precious Stone Agate
Agate is the term applied not to a distinct mineral
species, but also to an aggregate of various forms of
silica, chiefly Chalcedony. According to Theophrastus
the agate was named from the river Achates, in
Sicily, where these gem
stones were first found.
Historical Facts of Agate
| Refractive Index |
1.530 - 1.539 |
| Chemical Composition |
Hardness |
| Density |
2.57 - 2.64 |
| Crystal Group |
Hexagonal |
| Ocurrence |
Scotland, U.S.A., India, England, Italy,
Brazil, Uruguay, Germany, Egypt, Indonesia, and many
other localities |
| Color Key |
Blue, yellow, green, yellow,
orange, brown, gray |
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Gem Jewelry Agate
| Agate Bracelet |
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| Agate Earrings |
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| Agate Necklace |
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| Agate Rings |
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