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Nahcolite : NaHCO3, Trona : Na3H(CO3)2·2H2O | |
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Wadi Natrun depression (Wadi el Natrun), Western Desert, Egypt Nahcolite white vein between weakly pink trona - Ex Marco Marchesini, April 2005 - Coin diameter 15 mm |
| © Marco Barsanti | Photo ID: 250855 View Count: 22 |
Nahcolite : NaHCO3 | |
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California, USA An exceptional large cabinet specimen with crystals to 2 cm! Old material not readily obtainable, even in local collections...In fact, I can honestly say that I haven't even SEEN one for sale in the 8 years I have lived in Southern California. These were collected several decades ago. 12 x 10 x 4.5 cm |
| © Rob Lavinksy | Photo ID: 20211 View Count: 680 |
Nahcolite : NaHCO3 | |
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California, USA A good specimen with more isolated crystals , to 1.6 cm! Old material not readily obtainable, even in local collections...In fact, I can honestly say that I haven't even SEEN one for sale in the 8 years I have lived in Southern California. These were collected several decades ago. 8 x 7 x 4.5 cm |
| © Rob Lavinsky | Photo ID: 20213 View Count: 378 |
Nahcolite : NaHCO3 | |
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California, USA An exceptional large specimen with crystals to 2 cm! Old material not readily obtainable, even in local collections...In fact, I can honestly say that I haven't even SEEN one for sale in the 8 years I have lived in Southern California. These were collected several decades ago. 9.5 x 8 x 4 cm |
| © Rob Lavinsky | Photo ID: 20212 View Count: 357 |
Nahcolite : NaHCO3 | |
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Garfield Co., Colorado, USA Harvard Mineralogical Museum specimen no. 98943. Label is about 5.5 cm long. P. Cristofono photo. |
| © 2007 Peter Cristofono | Photo ID: 98373 View Count: 189 |
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