R.F. Symes Books
Crystal gem
Describes how crystals form in nature, how crystals are grown artificially, and how they are used in industry. Numerous color photos with text identify the various gemstones.
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Crystal & Gem (DK Eyewitness Books)
Describes how crystals form in nature, how crystals are grown artificially, and how crystals are used in industry. Numerous color photos with text identify the various gemstones.
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Rocks & minerals
By R. F. Symes
Text and photographs examine the creation, importance, erosion, mining, and uses of rocks and minerals.
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Rocks & minerals
Text and photographs examine the creation, importance, erosion, mining, and uses of rocks and minerals.
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