Ch. 3: Precious Gem stones in 1911

• Ch. 1: Gold, Silver in 1911
• Ch. 2: Platinum in 1911
• Ch. 3: Gemstones in 1911

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• Kunz. Gems in North Carolina.
• Ch. 6: Beryl & Spodomene
•  
• Kunz. Gems in North Carolina.
• Ch. 4: Pegmatitic Dikes
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• US Geol. Surv. 1891. Gemstones, Metals.
• Ch. 2: Gemstones in 1891
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• US Geol. Surv. 1914. Gemstones, Metals.
• Ch. 3: Gemstones in 1914
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• US Geol. Surv. 1905. Gemstones, Metals.
• Ch. 3: Gemstones in 1905
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• US Geol. Surv. 1918. Gemstones, Metals.
• Ch. 3: Gemstones in 1918
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• US Geol. Surv. 1908. Gemstones, Metals.
• Ch. 2: Gemstones in 1908
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• US Geol. Surv. 1908. Gemstones, Metals.
• US Geol. Surv. 1903. Gemstones, Metals.
• US Geol. Surv. 1892. Gemstones, Metals.

Deposits Diamond Gemological Properties Gemstones Gold History Mine Mining Production USA

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