Ch. 1: Gold and Silver in 1916

• Ch. 1: Gold, Silver in 1916
• Ch. 2: Platinum in 1916
• Ch. 3: Gemstones in 1916

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• Louderback. Benitoite.
• Benitoite Description
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• Wodiska. A Book of Precious Stones.
• Ch. 12: Topaz
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• US Geol. Surv. 1882. Gemstones, Metals.
• Ch. 1: Gold, Silver in 1882
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• US Geol. Surv. 1912. Gemstones, Metals.
• Ch. 1: Gold, Silver in 1912
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• US Geol. Surv. 1919. Gemstones, Metals.
• Ch. 1: Gold, Silver in 1919
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• US Geol. Surv. 1913. Gemstones, Metals.
• Ch. 1: Gold, Silver in 1913
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• US Geol. Surv. 1893. Gemstones, Metals.
• Ch. 1: Gold, Silver in 1893
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• US Geol. Surv. 1910. Gemstones, Metals.
• US Geol. Surv. 1922. Gemstones, Metals.
• US Geol. Surv. 1885. Gemstones, Metals.

Deposits Diamond Gemological Properties Gemstones Gold History Mine Mining Production USA

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