КНИГИ НА АНГЛИЙСКИЙ ЯЗЫКЕ, ИМЕЮЩЕЕ ОТНОШЕНИЕ К СЛОВУ «PIEMONTITE»
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Disilicates and Ring Silicates
It is, however, present largely as Mn3 + emphasizing that the critical factor for the
production of piemontite in the rock is not a high manganese content but an
unusually high oxidation state. Piemontite (Table 6, anal. 8) with tourmaline and ...
William Alexander Deer, Robert Andrew Howie, J. Zussman, 1997
2
Rock-forming Minerals in Thin Section
corundum hematite corundum vesuvianite dolomite та gehlenite tourmaline
tourmaline gehlenite О) ф siderite siderite tourmaline с scapolite vesuvianite
vesuvianite piemontite piemontite aenigmatite piemontite titanaugite chloritoid
chlorite ...
Hans Pichler, Cornelia Schmitt-Riegraf, 1997
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Field Guide to Rocks & Minerals of Southern Africa
189: The manganese variety of epidote, piemontite, partially coating a quartz
crystal, from No. 5 Shaft, Messina mine, Limpopo Province. The piemontite
crystals are 7 mm long. 195: Euclase crystals, 5.5 cm, from the Last Hope mine,.
from the ...
4
Rock Forming Minerals 3B: Layered Silicates Excluding Micas ...
Pennantite The occurrence of this manganoan chlorite is generally restricted to
metamorphosed manganese deposits, but it also found as an important
component in some clino- chlore-chamosite mineral/in piemontite-bearing rocks (
e.g. ...
William Alexander Deer, Robert Andrew Howie, J. Zussman, 2009
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Issues in Geology and Mineralogy: 2011 Edition
Publisher contact information for the journal Contributions to Mineralogy and
Petrology is: Springer, 233 Spring St., New York, NY 10013, USA. (2010 APR 16)
University of Bern: Crystal chemistry of Mn2+-, Sr-rich and REE-bearing
piemontite ...
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Mineralogy of Pennsylvania 1922-1965: Supplementing and ...
The mineral was found in close association with tiny needles of piemontite, a
reddish, vividly-pleochroic, manganiferous member of the epidote group. The
scheelite occupied the central parts of very small cavities in lithophysal and
spherulitic ...
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Mineralogical Applications of Crystal Field Theory
4.4.2 Stability of Mn“ ions in epidote and andalusite 4.4.2.1 Piemontite The Mn3*
ion, 3d', is relatively unstable and, as noted in §2.5, Mn(HI) compounds readily
undergo oxidation, reduction and disproportionation reactions forming more ...
8
Blueschists and Eclogites
Gennaro, V., 1925, Micascisti a piemontite nelle Valli di Lanzo (Alpi piemontesi):
Rend. R. Acc. Lincei, s. 6, v.2, p. 508-510. Goldsmith, J. R. and Graf, D. L., 1957,
The system CaO-MnO-C02, the solidsolution and decomposition relations: ...
Bernard W. Evans, Edwin H. Brown, 1986
Piemontite. Valle d'Aosta/Italy Ca2(Mn3+,Fe3+)(Al,Mn3+)2[O| OH |SiO4 |Si2O7]
Streak cherry red. Mohs' hardness 6-61/2. Specific gravity 3.4-3.5. Characteristics
: red, brownish red, reddish black to black. Luster: vitreous; translucent to ...
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R049: Mesozoic metavolcanic and metasedimentary rocks of the ...
Distinctive red to reddish-brown piemontite (Gianella, 1937) and pinkish Mn-
bearing epidote (L.C. Hsu, oral commun., 1990) are locally common in
metaignimbrites about 3 km northwest of Peavine Peak and on Petersen
Mountain to the north.
