| Home Page | Log In | Message Board | The Mindat Directory |
| Register | Search Pages | Chat Now! (2 online) | Mindat Auctions |
|
|
|
| |
|
Río Negro, Argentina 7.9 x 4.5 x 3.6 cm, 7.7 x 4.8 x 2.8 cm, 5.4 x 4.7 x 3.5 cm. More Argentine rarities from Dave Stoudt's travels through Argentina: 3 nodules containing delicate peach-colored puffballs of natrolite. |
| © Rob Lavinsky | Photo ID: 167778 View Count: 209 |
Natrolite : Na2[Al2Si3O10] · 2H2O | |
|
Río Negro, Argentina Being a long-time collector of geodes and nodules, this specimen immediately caught my interest, as I had never before seen nor heard of these multicolored Natrolite geodes. When one thinks of geodes and nodules from Argentina, one typically envisions the so-called Condor Agates and colorful Chalcedony geodes of which there seems to be an endless ... |
| © Russell G. Rizzo | Photo ID: 199242 View Count: 113 |
| |
|
San Agustin del Valle Fertil, San Juan, Argentina Size: 10.4 x 6.3 x 5.0 cm. Crystal's long: 1.5 cm. |
| © JCLodovichi | Photo ID: 58177 View Count: 451 |
Natrolite : Na2[Al2Si3O10] · 2H2O | |
|
San Agustin del Valle Fertil, San Juan, Argentina Field width is 7 cm. Collection of Jesse Crawford. Equipment: Nikon D-100 digital camera. |
| © 2008 Jesse Crawford | Photo ID: 176902 View Count: 173 |
| |
|
San Agustin del Valle Fertil, San Juan, Argentina 17.8 x 10.9 x 6.8 cm. Almost all of the natrolites you see these days are from India, but this is actually an ARGENTINE one - a large plate with a rich band running across the middle of transparent crystals to about 1.5 cm. From a small private collection of long-collected Argentine minerals built up by a US expatriate down there. |
| © Rob Lavinsky | Photo ID: 158742 View Count: 156 |
Natrolite : Na2[Al2Si3O10] · 2H2O | |
|
San Agustin del Valle Fertil, San Juan, Argentina The width of field is 1.2 mm. Collection of Jesse Crawford. Equipment: Nikon D-100 digital camera on a petrographic microscope. This is a view using transmitted light with the specimen between crossed polarizers. |
| © 2008 Jesse Crawford | Photo ID: 178475 View Count: 118 |
Natrolite : Na2[Al2Si3O10] · 2H2O | |
|
Merriwa, Brisbane Co., New South Wales, Australia Very fine natrolite - vesicle is 55mm across |
| © Greg Andrew | Photo ID: 170060 View Count: 180 |
Natrolite : Na2[Al2Si3O10] · 2H2O | |
|
Ardglen Quarry (State Rail Quarry), Ardglen, Buckland Co., New South Wales, Australia Small transparent Natrolite on Basalt. Overall size 86mm x 48mm x 22mm Personally collected 1965 Personal collection and photo |
| © Keith Compton | Photo ID: 36123 View Count: 508 |
Natrolite : Na2[Al2Si3O10] · 2H2O, Analcime : Na2[Al2Si4O12] · 2H2O | |
|
Ardglen Quarry (State Rail Quarry), Ardglen, Buckland Co., New South Wales, Australia Natrolite on analcime, obtained in 1991. Alan Goldstein specimen (#1458) and photo. |
| © Alan Goldstein | Photo ID: 35097 View Count: 434 |
| |
|
Ardglen Quarry (State Rail Quarry), Ardglen, Buckland Co., New South Wales, Australia Sample crystallized with 7x5x4cm - January of 2006 - From Ruth and Maurie Faux collection |
| © Martins da Pedra | Photo ID: 63026 View Count: 355 |
| Page 1 of 55 (1 to 10 of 543 total) | Next Page | |
| Page: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 | ||
