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

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• Louderback. Benitoite.
• Benitoite Description
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• Bradford. The Berringa Gold-Field
• Berringa Gold Fields, Australia
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• US Geol. Surv. 1920. Gemstones, Metals.
• Ch. 2: Platinum in 1920
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• US Geol. Surv. 1912. Gemstones, Metals.
• Ch. 2: Platinum in 1912
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• US Geol. Surv. 1922. Gemstones, Metals.
• Ch. 2: Platinum in 1922
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• US Geol. Surv. 1919. Gemstones, Metals.
• Ch. 2: Platinum in 1919
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• US Geol. Surv. 1883-84. Gemstones, Metals.
• Ch. 2: Platinum in 1883/84
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• US Geol. Surv. 1888. Gemstones, Metals.
• Bradford. The Berringa Gold-Field
• Bradford. The Clunes Gold-Field.

Deposits Diamond Gemological Properties Gemstones Gold History Mine Mining Production USA

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