Quartz Mining Techniques

2017-9-11herkimer diamond geology and geographyhe host rock for herkimer diamonds is the cambrian-age, little falls dolostonehe little falls dolostone was deposited about 500 million years ago, and the herkimer diamonds formed in cavities within the dolostoneese cavities are frequently lined with drusy quartz crystals and are often coated with a tarry hydrocarbon.

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