Ch. 3: Precious Gem stones in 1914

• Ch. 1: Gold, Silver in 1914
• Ch. 2: Platinum in 1914
• Ch. 3: Gemstones in 1914

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• Wodiska. A Book of Precious Stones.
• Ch. 12: Topaz
•  
• Wodiska. A Book of Precious Stones.
• Ch. 12: Topaz
•  

• US Geol. Surv. 1883-84. Gemstones, Metals.
• Ch. 3: Gemstones in 1883/84
•  
• US Geol. Surv. 1888. Gemstones, Metals.
• Ch. 3: Gemstones in 1888
•  
• US Geol. Surv. 1913. Gemstones, Metals.
• Ch. 3: Gemstones in 1913
•  
• US Geol. Surv. 1891. Gemstones, Metals.
• Ch. 2: Gemstones in 1891
•  
• US Geol. Surv. 1905. Gemstones, Metals.
• Ch. 3: Gemstones in 1905
•  

• US Geol. Surv. 1913. Gemstones, Metals.
• US Geol. Surv. 1908. Gemstones, Metals.
• US Geol. Surv. 1912. Gemstones, Metals.

Deposits Diamond Gemological Properties Gemstones Gold History Mine Mining Production USA

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