Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
(Chemical formula and crystal chemical characteristics of melanothallite, Cu2OCl2. / Vergasova, L. P.; Filatov, S. K.
в: ЗАПИСКИ ВСЕСОЮЗНОГО МИНЕРАЛОГИЧЕСКОГО ОБЩЕСТВА, Том 111, № 5, 01.01.1982, стр. 562-565.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - (Chemical formula and crystal chemical characteristics of melanothallite, Cu2OCl2.
AU - Vergasova, L. P.
AU - Filatov, S. K.
PY - 1982/1/1
Y1 - 1982/1/1
N2 - Chemical analysis, by T. A. Cherepova, of black plates from fumaroles of the 1975-76 eruption of the Tolbachin volcano, Kamchatka, gave Cu 59.41, Cl 28.33, Pb 0.01, Zn 0.07, Na 0.04, K 0.06, Li 0.04, SO4 1.20, H2O+ 0.05, H2O- 1.75, O (calc.) 8.55, = 99.51. This is interpreted as 85.50% Cu2OCl2, 10.79% CuO and 3.22% 'others'. XRD data agree well with artificial Cu2OCl2 (ASTM card 23-954); tenorite lines are masked by the principal constituent. The mineral is termed melanothallite, following the identification on the ASTM card, and revised cell dimensions are given: a 9.595, b 9.693, c 7.461 A; Dcalc. 4.08 g/cm3. (The data on ASTM card 23-954 are from L. Walther-Levy et al., Bulletin de la Societe Chimique de France, 1970, p 2789; their synthetic material differs from the melanothallite of A. Scacchi (1870), E. Scacchi (1884) and F. Zambonini (1910), which rapidly absorbs water from the air, turning to yellow-green hydromelanothallite. The Tolbachin mineral is clearly Cu2OCl2, but is almost certainly not melanothallite.)-M.H.H.
AB - Chemical analysis, by T. A. Cherepova, of black plates from fumaroles of the 1975-76 eruption of the Tolbachin volcano, Kamchatka, gave Cu 59.41, Cl 28.33, Pb 0.01, Zn 0.07, Na 0.04, K 0.06, Li 0.04, SO4 1.20, H2O+ 0.05, H2O- 1.75, O (calc.) 8.55, = 99.51. This is interpreted as 85.50% Cu2OCl2, 10.79% CuO and 3.22% 'others'. XRD data agree well with artificial Cu2OCl2 (ASTM card 23-954); tenorite lines are masked by the principal constituent. The mineral is termed melanothallite, following the identification on the ASTM card, and revised cell dimensions are given: a 9.595, b 9.693, c 7.461 A; Dcalc. 4.08 g/cm3. (The data on ASTM card 23-954 are from L. Walther-Levy et al., Bulletin de la Societe Chimique de France, 1970, p 2789; their synthetic material differs from the melanothallite of A. Scacchi (1870), E. Scacchi (1884) and F. Zambonini (1910), which rapidly absorbs water from the air, turning to yellow-green hydromelanothallite. The Tolbachin mineral is clearly Cu2OCl2, but is almost certainly not melanothallite.)-M.H.H.
UR - http://www.scopus.com/inward/record.url?scp=0019896002&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0019896002
VL - 111
SP - 562
EP - 565
JO - ЗАПИСКИ РОССИЙСКОГО МИНЕРАЛОГИЧЕСКОГО ОБЩЕСТВА
JF - ЗАПИСКИ РОССИЙСКОГО МИНЕРАЛОГИЧЕСКОГО ОБЩЕСТВА
SN - 0869-6055
IS - 5
ER -
ID: 53959475