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Opal from
Southwest of Salero, Grosvenor Hills, Salero area, Tyndall District, Santa Rita Mts, Santa Cruz Co., Arizona, USA

Description
Comments:	Occurs in a 6 inch (15 cm) vein in andesite and rhyolite.
Colour:	Amber-brown, yellowish-brown
Quality of samples:	not specified / average specimens
Confirmation
Validity:	Believed Valid
References
References:	Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 361.
Associated minerals:
Associates:	Chalcedony Opal-AN
Data
Mineral Data:	Click here to view Opal data
Locality Data:	Click here to view Southwest of Salero, Grosvenor Hills, Salero area, Tyndall District, Santa Rita Mts, Santa Cruz Co., Arizona, USA

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