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Chalcedony (Var: Agate) : SiO2, Opal : SiO2·nH2O, Quartz : SiO2, Quartz (Var: Jasper) : SiO2 | |
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Rockhound State Park, Little Florida Mountains District, Luna Co., New Mexico, USA Blue-gray banded agate enclosing colorless crystalline quartz and milky blue-white opal. The matrix is orange brown to reddish-brown jasper. View is about 15 mm across. P. Cristofono specimen and photo. Field-collected 2006. |
| © 2006 Peter Cristofono | Photo ID: 50788 View Count: 385 |
Chalcedony (Var: Agate) : SiO2 | |
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Rockhound State Park, Little Florida Mountains District, Luna Co., New Mexico, USA Subject size: 33mm x 22 mm. Fluoresces green in SW ultraviolet light. P. Cristofono specimen and photo. Field-collected 1989. |
| © 2005 Peter Cristofono | Photo ID: 44149 View Count: 349 |
Opal : SiO2·nH2O | |
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Rockhound State Park, Little Florida Mountains District, Luna Co., New Mexico, USA Length: 22.5 mm. Peter Cristofono specimen and photo. Field-collected 2006. |
| © 2006 Peter Cristofono | Photo ID: 50212 View Count: 332 |
Opal : SiO2·nH2O | |
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Rockhound State Park, Little Florida Mountains District, Luna Co., New Mexico, USA Left: 5 cm wide specimen containing bluish-white opal. Right: Same specimen fluorescing green in SW ultraviolet light. P. Cristofono specimen and photo. Field-collected 2006. |
| © 2006 Peter Cristofono | Photo ID: 50697 View Count: 255 |
Quartz (Var: Jasper) : SiO2 | |
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Rockhound State Park, Little Florida Mountains District, Luna Co., New Mexico, USA Subject size: 38mm x 24 mm. P. Cristofono specimen and photo. Field-collected 1989. |
| © 2004 Peter Cristofono | Photo ID: 25045 View Count: 464 |
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Rockhound State Park, Little Florida Mountains District, Luna Co., New Mexico, USA Origin: Rockhound State Park; Volcanic; Little Florida Mountains Method Obtained: Surface collected without tools Color: Red, brown, yellow, and white Transparency: Opaque Measurements: Largest Specimen Width: 2 1/3 inches Largest Specimen Length: 2 1/2 inches Smallest Specimen Width: 1 1/2 inches Smallest Specimen Length: 2 1/2 ... |
| Photo ID: 155354 View Count: 136 | |
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