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Acanthite : Ag2S | |
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Fresnillo de Gonzalez Echeverria (Fresnillo), Mun. de Fresnillo, Zacatecas, Mexico Group of acanthite crystals showing cubic crystal habit. Largest crystal is 2cm x 2cm. Specimen size, 4cm x 3cm. Brent Thorne specimen and photograph. |
| © Brent Thorne | Photo ID: 14359 View Count: 3935 |
Acanthite : Ag2S, Stephanite : Ag5SbS4 | |
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Fresnillo de Gonzalez Echeverria (Fresnillo), Mun. de Fresnillo, Zacatecas, Mexico Sharp, and very aesthetic, cluster of Argentite crystals after Stephanite. The largest crystal is about 1.8 cm, and all have an excellent luster. Better yet, the pseudos have retained the crystal edges and faces very nicely. A superb thumb, and much better in person. 2.4 x 1.8 x 1.1 cm |
| © Rob Lavinsky | Photo ID: 48325 View Count: 364 |
Acanthite : Ag2S | |
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San Luis shaft, Fresnillo de Gonzalez Echeverria (Fresnillo), Mun. de Fresnillo, Zacatecas, Mexico An exquisite acanthite thumber, completely crystallized, with two crystals growing up off a “base” stalk. They don’t get much more aesthetic than this. A fullsized thumbnail. 2.4 x 1.8 x 0.6 cm |
| © Rob Lavinsky | Photo ID: 41461 View Count: 360 |
Acanthite : Ag2S | |
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Fresnillo de Gonzalez Echeverria (Fresnillo), Mun. de Fresnillo, Zacatecas, Mexico Specimen is 1.5 cm high. Created with CombineZ5. Photo and collection, T. Peterson. |
| © Tony Peterson | Photo ID: 85570 View Count: 276 |
Acanthite : Ag2S | |
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Fresnillo de Gonzalez Echeverria (Fresnillo), Mun. de Fresnillo, Zacatecas, Mexico 2.2 x 1.9 x 1.0 cm. A drop-dead gorgeous and aesthetic Fresnillo acanthite thumbnail. A super-sharp, lustrous, 1.1 cm, rounded acanthite crystal sits atop branching stalks of acanthite and is nicely accented by a bit of quartz. This showy piece has a very anthropmorphic look. The large crystal looks like a head. |
| © Rob Lavinsky | Photo ID: 154637 View Count: 136 |
Acanthite : Ag2S, Calcite : CaCO3 | |
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Fresnillo de Gonzalez Echeverria (Fresnillo), Mun. de Fresnillo, Zacatecas, Mexico 3.5 x 2.8 x 2.0 cm. Isolated, super-sharp and lustrous acanthite cubes to 7 mm are jauntily perched on three-dimensional, contrasting calcite matrix on this showy and excellent specimen from the very rich and famous silver mines at Fresnillo, Mexico. Ex. Dave Stoudt Collection. |
| © Rob Lavinsky | Photo ID: 168825 View Count: 114 |
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Fresnillo de Gonzalez Echeverria (Fresnillo), Mun. de Fresnillo, Zacatecas, Mexico An outstanding crystallized matrix specimen for this species! A 7.7 x 7.6 x 6.9 cm matrix is hosting extremely bright and lustrous well crystallized acanthite forming a grouping measuring 3.6 x 3.1 x 1.3 cm in size. The acanthite crystals are set on a druse of micro crystalline colorless quartz. No damage. The specimen has been either repaired ... |
| © Diana & Dan Weinrich Minerals | Photo ID: 233585 View Count: 51 |
Acanthite : Ag2S | |
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Fresnillo de Gonzalez Echeverria (Fresnillo), Mun. de Fresnillo, Zacatecas, Mexico 3 x 2.0 x 1.2 cm. An extremely lustrous, elongated, hoppered crystal of exceptional quality for this classic silver area. It is complete-all-around. Ex. Laura and Stevia Thompson Collection. |
| © Rob Lavinsky | Photo ID: 257469 View Count: 14 |
Marcasite : FeS2, Quartz : SiO2 | |
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Fresnillo de Gonzalez Echeverria (Fresnillo), Mun. de Fresnillo, Zacatecas, Mexico Inch ruler for scale beside this quartz matrix covered with botryoidal marcasite from Fresnillo. |
| © Charles Creekmur | Photo ID: 21269 View Count: 289 |
Polybasite : [(Ag,Cu)6(Sb,As)2S7][Ag9CuS4] | |
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Fresnillo de Gonzalez Echeverria (Fresnillo), Mun. de Fresnillo, Zacatecas, Mexico Group of "rosettes" of Polybasite. Specimen stands 7.0 cm tall |
| Photo ID: 3284 View Count: 1075 | |
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