| Home Page | Log In | Message Board | The Mindat Directory |
| Register | Search Pages | Chat Now! (2 online) | Mindat Auctions |
|
|
|
Bararite : (NH4)2[SiF6], Sulphur : S8 | |
|
Burnside, Northumberland Co., Pennsylvania, USA Greyish colored coatings of bararite, with yellow sulfur. 1.5 cm field of view. S396-16 Specimen courtesy of Excalibur Mineral Company. |
| © 2007, JGW | Photo ID: 139932 View Count: 225 |
| |
|
Burnside, Northumberland Co., Pennsylvania, USA 2 mm rock sample covered by very small white crystals of downeyite - natural selenium dioxide. The mineral is a coal-fire byproduct, formed by gas desublimation on a burning coal dump. The mineral is surprisingly unstable - its so extremely hygroscopic that decomposes in air in a very short time period and its probably connected with its structure ... |
| © Ł Kruszewski 08 | Photo ID: 161598 View Count: 440 |
Laphamite : As2(S,Se)3 | |
|
Burnside, Northumberland Co., Pennsylvania, USA Picture width 1.5 mm. Collection and photograph Christian Rewitzer |
| © Christian Rewitzer | Photo ID: 91012 View Count: 358 |
Laphamite : As2(S,Se)3 | |
|
Burnside, Northumberland Co., Pennsylvania, USA Brown laphamite. Grain size 1.5 mm. Photographer and collection Thomas Witzke. |
| © Thomas Witzke | Photo ID: 9955 View Count: 611 |
Selenium : Se | |
|
Burnside, Northumberland Co., Pennsylvania, USA Steely grey acicular crystals of Selenium collected at Burnside, Northumberland Co., Pennsylvania, just south of Shamokin. Deposition caused by the burning Anthracite coal within the mining waste piles (non-native). specimen aproximately 4 x 6mm. From the PA Annex of my personal collection, acquired in 2005. |
| © M.Heintzelman | Photo ID: 30303 View Count: 422 |
| Page 1 of 1 (1 to 5 of 5 total) | ||
| Page: 1 | ||
