Winchite (of Leake)
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Leake et al.(1986) redescivered the winchite described by Fermor, see winchite (of Fermor) in the core of a nearly pure 0.3 mm crystal with microcline, diopside, plagioclase and apatite in a 3 mm thick layer in Mn-ore rock, (Leake et al. (1986), Sample T2). Leake et al. (1986) publish five microprobe analyses from this crystal; three analyses of subcalcic tremolites nearer to the periphery of the crystal and two analyses corresponding to ferri-winchite near the core: (Na0.21K0.10)0.31(Na0.73Ca1.27)2.00(Mg4.26Mn2+0.08Fe3+0.55Al0.09)5.00(Si7.78Al0.22)8.00O22(OH)2
and
(Na0.16K0.15)0.31(Na0.73Ca1.27)2.00(Mg4.36Mn2+0.06Fe3+0.54Al0.06)5.00(Si7.73Al0.27)8.00O22(OH)2
and
(Na0.16K0.15)0.31(Na0.73Ca1.27)2.00(Mg4.36Mn2+0.06Fe3+0.54Al0.06)5.00(Si7.73Al0.27)8.00O22(OH)2
Unique Identifiers
Mindat ID:
43465
Long-form identifier:
mindat:1:1:43465:6
Similar Names
| Finchite | A valid IMA mineral species | Sr(UO2)2(V2O8) · 5H2O |
| Pinchite | A valid IMA mineral species | Hg52+Cl2O4 |
| Winchite | A valid IMA mineral species - grandfathered | ◻{CaNa}{Mg4Al}(Si8O22)(OH)2 |
| Winchite (of Fermor) | A synonym of Ferri-winchite | ◻[CaNa][Mg4(Fe3+,Al)]Si8O22(OH)2 |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Winchite (of Leake)
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References for Winchite (of Leake)
Reference List:
Fermor, Lewis Leigh (1909) The manganese ore deposits of India. Memoirs of the Geological Survey of India Vol. 37. Geological Survey of India
Nayak, V. K., Leake, Bernard E. (1975) On 'winchite' from the original locality at Kajlidongri, India. Mineralogical Magazine, 40 (312) 395-399 doi:10.1180/minmag.1975.040.312.08
Leake, Bernard E., Farrow, Colin M., Nayak, V. K. (1981) Further studies on winchite from the type locality. American Mineralogist, 66 (5-6) 625-631
Localities for Winchite (of Leake)
Showing 1 localities.
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All localities listed without proper references should be considered as questionable.
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