| Abstract: | A new nickel sulphate monohydrate is described from V-sulphide ore from Minasragra; it occurs associated with patronite (VS2) with various sulphates, sulphur and bitumen. Dwornikite forms fine-grained white aggregates mixed with other oxidation products. Indexed X-ray powder data are tabulated; strongest lines 3.342(100) , 4.732(70), 3.024(70), 4.754(50), 3.293(35), 2.491(35) A; a 6.839, b 7.582, c 7.474 A, beta 117.85o; space group C2/c. XRF gave NiO 39.0, FeO 9.3, SO3 42.4, = 90.7; Dcalc. 3.34 g/cm3; mean refr. ind. approx 1.63. Unit-cell data for the synthetic end-member compounds NiSO4.H2O and FeSO4.H2O and new X-ray powder data for retgersite (NiSO4.6H2O) are given. The name is for E. J. Dwornik, mineralogist with the U.S. Geological Survey.-R.A.H. |
| Genre: | Article |
| ProdID: | 70011828 |
| Citation Author: | Milton, C.; Evans, Jr, H. T.; Johnson, R. G. |
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| Citation End Page: | 355 |
| Citation Issue: | 340 |
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| Citation Language: | English |
| Citation Larger Work Title: | Mineralogical Magazine |
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| Citation Number Of Pages: | 5 |
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| Citation Search Results Text: | Dwornikite, (Ni,Fe)SO4.H2O, a member of the kieserite group from Minasragra, Peru.; 1982; Article; Journal; Mineralogical Magazine; Milton, C.; Evans, Jr, H. T.; Johnson, R. G. |
| Citation Start Page: | 351 |
| Citation Volume: | 46 |
| Citation Year: | 1982 |
| Type: | citation/reference |
| Text: | Dwornikite, (Ni,Fe)SO4.H2O, a member of the kieserite group from Minasragra, Peru.; 1982; Article; Journal; Mineralogical Magazine; Milton, C.; Evans, Jr, H. T.; Johnson, R. G. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Fri, 1 Jan 1982 00:00 -0600 |
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