Open AccessA hydrated oxide of chromium as a pseudomorph after eskolaite, Outokumpu, Finland
Author(s) -
Y. Vuorelainen,
T.A. Häkli,
Markku Kataja
Publication year - 1968
Publication title -
bulletin of the geological society of finland
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 24
eISSN - 1799-4632
pISSN - 0367-5211
DOI - 10.17741/bgsf/40.014
Subject(s) - pseudomorph , geology , chromium , geochemistry , mineralogy , metallurgy , materials science , paleontology , quartz
A new chromium mineral, hydrated oxide of chromium, has been identified as a pseudomorph after eskolaite, C203 in the Outokumpu orebody. Electron microprobe analyses suggest the formula as 2 (Cr177 V0.i6 Al0.04 Fe0.03 O3.3 (H20) The mineral is orthorhombic, a„ = 5.918 A, b0 = 8.610 A, c0 = 9.727 A, Z = 4, V 495 A3; and D calc = 4.81 g/cm3;.
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