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chalcedony |
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chalcedonyForm of the mineral quartz, SiO2, in which the crystals are so fine-grained that they are impossible to distinguish with a microscope (cryptocrystalline). Agate, onyx, and carnelian are gem varieties of chalcedony. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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03 opt; whereas drill hole MS-2 hit a 40-foot thick zone of chalcedonic veining at 160-200 feet, which ran 0. Veins associated with higher gold values, (greater than 1 g/t Au), generally consist of fine grained or chalcedonic quartz with weak to moderate banding. Large boulders up to 5m in width of silicified conglomerate with chalcedonic, banded and crackle brecciated epithermal quartz with fine pyrite were initially identified in a small stream and traced back to outcrops. |
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