Collector's Guide to Quartz and Other Silica Minerals Success Harness the planetary intelligence of

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Collector's Guide to Quartz and Other Silica Minerals Success Harness the planetary intelligence ofQuartz is prized by both mineral collectors and lapidary artists. Over 130 vivid photographs of these beautiful minerals are presented to show each mineral in its geological context. Superb examples are found in diverse geological settings from pegmatites to Alpine clefts and hydrothermal veins. In addition to the polymorphs of silica, this book treats related minerals, including lechatelierite, opal, and two natural clathrates, chibaite and