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Brandtite : Ca2(Mn2+,Mg)[AsO4]2 · 2H2O | |
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Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA A HUGE and especially rich specimen of brandtite, significant for the size overall (I couldn't bring myself to trim in half...though each half is probably worth the same!). In person, the whole front face sparkles with hundreds of flat-laying, acicular crystals of bright white brandtite! 11 x 5.5 x 3 cm |
| © Rob Lavinsky | Photo ID: 18494 View Count: 412 |
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Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA Brandtite - close-up of white acicular crystals up to 4 mm on a 4 x 4 cm willemite and calcite matrix associated with unidentified white, green and blue minerals. Found near the 1000' level, Sterling Hill Mine. See additional photos and John E. MacDonald and Joe Cilen labels. |
| © Christopher O'Neill | Photo ID: 155742 View Count: 126 |
Brandtite : Ca2(Mn2+,Mg)[AsO4]2 · 2H2O, Rhodochrosite : MnCO3 | |
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Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA 0.06 cm crystals of brandtite on rhodochrosite. S402-304 #1079# |
| © 2008, JGW | Photo ID: 146492 View Count: 109 |
Brandtite : Ca2(Mn2+,Mg)[AsO4]2 · 2H2O | |
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Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA Flat-lying crystal spray on willemite-franklinite-calcite matrix. Labeled as being from the 1000' level, 1120 stope. S406-087 #1206# |
| © 2008, JGW | Photo ID: 146491 View Count: 93 |
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Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA 3.9 x 2.2 x 1.7 cm. Brandtite is a fairly rare hydrated arsenate that is only found in a little over a dozen world localities. This piece features dozens of classic, small (approx 0.5 mm), sharp, gemmy, lustrous, colorless, prismatic crystals of Brandtite on matrix. Brandtite is one of the more highly sought after species for Franklin collectors, ... |
| © Rob Lavinsky | Photo ID: 266924 View Count: 8 |
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