 | | Report (issue) | | 10.73 4.67 4.42 29.43 100.03 3+ (1) Tyllakh deposit, Russia. (2) NaMgFe 100.00 (C2 O4 )3 8.5H2 O...Occurrence: In thin veinlets in coal. Association: Calcite, dolomite, whewellite, weddellite. Distribution:...Distribution: From the Tyllakh brown coal deposit, left bank of the Olenhinskii channel near its mouth, estuary...estuary of the Lena River, Bulun district, polar Sakha, Russia. Name: To honor Pavel Ivanovich Stepanov (1880β1947)...specialist in coal geology. Type Material: Mining Institute, St. Petersburg, Russia, 1659/1. References: |  | | Report (issue) | | D(meas.) = 1.94(1) D(calc.) = 1.962 Dehydrates to whewellite on exposure to the atmosphere. Optical Properties:...Color: Colorless to white, may be yellowish brown to brown from organic impurities; colorless in transmitted...oxalic acid produced by lichens. Association: Whewellite, urea, phosphammite, aphthitalite (from bat guano)...of Maun, northwestern Botswana. In the Tyllakh brown coal deposit, left bank of the Olenhinskii channel...its mouth, estuary of the Lena River, Bulun district, polar Sakha, Russia. From the Milltown quarry, |  | | Book | | P.O. Ocean Pictures Ltd. Box 368, Moscow 103009 Russia Phone/fax (7-095) 203 3574 e-mail oceanpicture@glasnet...fine mineralogical editions have been published in Russia. First of all one should mention the journal World...complete summary of discoveries of uranium minerals in Russia is given in Proceedings of the Russian Mineralogical...comprehensive book about 582 new minerals discovered in Russia (within its former and modern boundaries). The...8% of the total number, had been discovered Ill Russia in the pre-Soviet period (before 1917-1921). An |
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