| Home Page | Log In | Message Board | The Mindat Directory |
| Register | Search Pages | Chat Now! (2 online) | Mindat Auctions |
|
|
|
Agate (Var: Fire Agate) : SiO2, Quartz : SiO2 | |
|
Göttschieder Heide, Göttschied, Idar-Oberstein, Hunsrück Mts, Rhineland-Palatinate, Germany Found this rare Agate in August 2008 during a nice and sunny evening walk at the fields arround the Flugplatz. I have cut, grind and polished this 73 x 38 mm specie myself. |
| © A. Bleeker | Photo ID: 183551 View Count: 166 |
Agate (Var: Fire Agate) : SiO2 | |
|
Aguascalientes, Mexico 2.7 x 2.2 x 1.1 cm. These famous "fire agates", at their best, have all the flash of opals and are often confused with opal. They actually are formed by a thin layer of limonite covered in hard, transparent quartz, which is then polished to reveal the color. The good ones are quite rare; they are sometimes used in jewelry, though very hard to work ... |
| © Rob Lavinsky | Photo ID: 156125 View Count: 637 |
Agate (Var: Fire Agate) : SiO2 | |
|
Aguascalientes, Mexico View is about 1 cm across. Photograph by Peter Cristofono. |
| © 2006 Peter Cristofono | Photo ID: 50255 View Count: 816 |
| |
|
Aguascalientes, Mexico Fire Agate. Specimen size 5x4cm. Photo and collection Jorge M. Alves |
| © Jorge M. Alves | Photo ID: 117843 View Count: 311 |
| |
|
Aguascalientes, Mexico Fire Agate. Specimen size 6,5x4cm. Photo and collection; Jorge M. Alves |
| © Jorge M. Alves | Photo ID: 90166 View Count: 275 |
| |
|
Aguascalientes, Mexico Fire Agate. Specimen size 5x4cm. Photo and collection Jorge M. Alves |
| © Jorge M. Alves | Photo ID: 103577 View Count: 220 |
| |
|
Aguascalientes, Mexico 4.9 x 3.3 x 1.4 cm. Goethite (basically, rust) can take on all sorts of forms. Here, it lines a cavity deep in the interior of a vug, underneath a layer of clear overgrowth that gives this fire agate its internal form! This is rare and precious material, sometimes used by very skilled jewelers. This is so pretty, though, it should remain a mineral ... |
| © Rob Lavinsky | Photo ID: 150541 View Count: 176 |
Agate (Var: Fire Agate) : SiO2 | |
|
Aguascalientes, Mexico 3.9 x 2.9 x 1.7 cm. This is a polished specimen of "fire agate" that is very rare. It plays with light the way opal does, from fiery reds to neon green. This is a sizeable 20-gram specimen that is only about 10% matrix. |
| © Rob Lavinsky | Photo ID: 180670 View Count: 168 |
Agate (Var: Fire Agate) : SiO2 | |
|
Aguascalientes, Mexico 6.5 x 5.9 x 2.5 cm. NOTE: the apparent surface flaws on this specimen are not there in person - they are just photo artifacts; in person, the surface is polished and glassy and there are no dull spots or lines as the pic implies). Elsewhere in this set of auctions, we have a goethite and mentioned that this mineral (basically, rust) can take on ... |
| © Rob Lavinsky | Photo ID: 149421 View Count: 160 |
Agate (Var: Fire Agate) : SiO2 | |
|
El Cobre, Mun. de Tepezalá, Aguascalientes, Mexico Iridescent globular growth of Chalcedony var. Fire Agate. Overall size of specimen: 6.x4x4cm |
| © Carlos Medina | Photo ID: 112958 View Count: 218 |
| Page 1 of 2 (1 to 10 of 15 total) | Next Page | |
| Page: 1 2 | ||
