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Eckert, Allan (1997) The World of Opals. (John Wiley & Sons, New York).

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Year1997
Original EntryEckert, Allan (1997) The World of Opals. (John Wiley & Sons, New York).
Mindat Ref. ID16183293Long-form Identifiermindat:1:5:16183293:3
GUID0
Full ReferenceEckert, Allan (1997) The World of Opals. (John Wiley & Sons, New York).
Plain TextEckert, Allan (1997) The World of Opals. (John Wiley & Sons, New York).

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Rainbow Ridge Mine (Monarch Opal Mine; Roop Mine), Virgin Valley, Humboldt County, Nevada, USA

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Eckert, Allan W. (1997), The World of Opals. John Wiley & Sons, New York.
Eckert, Allan W. (1997) The World of Opals. (John Wiley & Sons, New York); p. 318.
Eckert, Allan W. (1997), The World of Opals (John Wiley & Sons, New York), p. 311-312.
Eckert, Allan W. (1997) The World of Opals. John Wiley & Sons, New York, NY; p. 84-85, 245,
Eckert, Allan W. (1997) The World of Opals. (Wiley & Sons, New York): 310-311.
Eckert, Allen W. (1997) The World of Opals. (John Wiley & Sons, New York). p. 312,310.
Allan W. Eckert (1997) The World of Opals. Wiley
Eckert, Allan (1997), The World of Opals.
Allan W. Eckert (1997) The World of Opals
Eckert, Allan (1997), The World of Opals: 313.
Eckert, Allan W. (1997): The World of Opals: 346.
 
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