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Acanthite : Ag2S, Silver : Ag | |
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Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico Acanthite on silver. Specimen at Harvard University, USA #99618. Scale at bottom of image is one inch with a rule at one cm. |
| Photo ID: 215995 View Count: 84 | |
Adamite : Zn2(AsO4)(OH), Aragonite : CaCO3 | |
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Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico Gorgeous, sherbert-green, super lustrous, spherical clusters of adamite contrast nicely with a matrix of white aragonite. The largest sphere is 1.5 cm across. The crystals actually glow as if they were radioactive , with neon color! This small pocket found a few years ago is just awesome, and unique for the species. This is one of the best ... |
| © Rob Lavinsky | Photo ID: 39890 View Count: 418 |
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Potosí, Chihuahua, Mexico Green Adamite on Aragonite. Field of view 40mm. Specimen size 7x5cm. Photo and collection Jorge M. Alves |
| © Jorge M. Alves | Photo ID: 98357 View Count: 203 |
Adularia : KAlSi3O8, Quartz : SiO2 | |
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Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico 5.4cm x 3.8cm x 1.5cm Purchased from M. Phantom Minerals. Collection of Danny Jones |
| © Danny Jones | Photo ID: 170284 View Count: 93 |
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Chihuahua, Mexico This specimen consists of a sharply twinned Oligoclase crystal with intense blue "moonstone" iridescence. This specimen has sharp, lustrous faces, gemmy clarity, and absolutely choice silvery blue labradorescence. The crystal exhibits marvelously sharp form and displays fantastically. The crystal also has some interesting healed fractures and an ... |
| © Jasun McAvoy | Photo ID: 260640 View Count: 35 |
Albite (Var: Oligoclase) : (Na,Ca)[Al(Si,Al)Si2O8] | |
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Chihuahua, Mexico Very nice cluster of tabular Oligoclase crystals from the famous find of early in the 1990s. The best-formed and most prominent of the crystals displays the beautiful opalescent play of light that these crystals are so famous for. 4.5 x 3.4 x 3 cm |
| © Rob Lavinsky | Photo ID: 22234 View Count: 1325 |
Andradite : Ca3Fe3+2[SiO4]3 | |
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La Prieta Mine, Chihuahua, Mexico Lustrous crystals of black, yttrium-rich andradite garnet crystals. The crystals have small crystal growth patterns on the surface. Overall size of mineral specimen: 5x3x3 cm. Size of individual crystals: 2-14 mm. |
| © 2001 John H. Betts | Photo ID: 371 View Count: 629 |
Andradite : Ca3Fe3+2[SiO4]3 | |
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Chihuahua, Mexico Very difficult to shoot, but this is a HUGE, lustrous compound crystal of garnet from Mexico. The faces are extremely sharp and lustrous, and these fine faces cover the entire display face (the back is a natural contact where removed from the matrix). 10.0 x 6.8 x 4.9 cm |
| © Rob Lavinsky | Photo ID: 24620 View Count: 263 |
Andradite : Ca3Fe3+2[SiO4]3 | |
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Julimes, Mun. de Julimes, Chihuahua, Mexico Large garnet crystals from a recent locality 3.1 x 2 x 1.8 cm |
| © Rob Lavinsky | Photo ID: 52806 View Count: 216 |
Andradite : Ca3Fe3+2[SiO4]3 | |
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La Prieta Mine, Chihuahua, Mexico 7 x 7 x 6 cm. A cluster of intergrown garnet crystals, reaching to 2.5 cm across, glow with a splendent luster. The crystals appear black but have gemmy orange highlights when lit well. It is about the brightest garnet lustre I have seen. They glisten with intense almost-metallic luster. |
| © Rob Lavinsky | Photo ID: 261493 View Count: 7 |
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