Research output: Contribution to journal › Article › peer-review
Parageorgbokiite, β-Cu5O2(SeO3) 2Cl2, a new mineral species from volcanic exhalations, Kamchatka Peninsula, Russia. / Vergasova, L. P.; Krivovichev, S. V.; Filatov, S. K.; Britvin, S. N.; Burns, P. C.; Anan'ev, V. V.
In: Geology of Ore Deposits, Vol. 49, No. 7, 01.01.2007, p. 518-521.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Parageorgbokiite, β-Cu5O2(SeO3) 2Cl2, a new mineral species from volcanic exhalations, Kamchatka Peninsula, Russia
AU - Vergasova, L. P.
AU - Krivovichev, S. V.
AU - Filatov, S. K.
AU - Britvin, S. N.
AU - Burns, P. C.
AU - Anan'ev, V. V.
PY - 2007/1/1
Y1 - 2007/1/1
N2 - Parageorgbokiite, β-Cu5O2(SeO3) 2Cl2, has been found at the second cinder cone of the Great Fissure Tolbachik Eruption, Kamchatka Peninsula, Russia. Ralstonite, tolbachite, melanothallite, chalcocyanite, euchlorine, Fe oxides, tenorite, native gold, sophiite, Na, Ca, and Mg sulfates, cotunnite, and some copper oxoselenites are associated minerals. The estimated temperature of the mineral formation is 400-625°C. The color is green, with a vitreous luster; the streak is light green. The mineral is brittle, with the Mohs hardness ranging from 3 to 4. Cleavage is not observed. The calculated density is 4.70 g/cm3. Parageorgbokiite is biaxial (+); α = 2.05(1), β = 2.05(1), and γ = 2.08(1); 2V(meas.) is ∼03, and 2V(calc.) = 0(5)°. The optical orientation is X = a; other details remain unclear. The mineral is pleochroic, from grass green on X and Y to yellowish green on Z. The empirical formula calculated on the basis of O + Cl = 10 is Cu4.91 Pb0.02O1.86(ScO3)2 Cl2.14. The simplified formula is Cu5O2 (ScO3)2Cl2. Parageorgbokiite pertains to a new structural type of inorganic compounds. Its name points out its dimorphism with georgbokiite, which was named in honor of G.B. Bokii, the prominent Russian crystal chemist (1909-2000).
AB - Parageorgbokiite, β-Cu5O2(SeO3) 2Cl2, has been found at the second cinder cone of the Great Fissure Tolbachik Eruption, Kamchatka Peninsula, Russia. Ralstonite, tolbachite, melanothallite, chalcocyanite, euchlorine, Fe oxides, tenorite, native gold, sophiite, Na, Ca, and Mg sulfates, cotunnite, and some copper oxoselenites are associated minerals. The estimated temperature of the mineral formation is 400-625°C. The color is green, with a vitreous luster; the streak is light green. The mineral is brittle, with the Mohs hardness ranging from 3 to 4. Cleavage is not observed. The calculated density is 4.70 g/cm3. Parageorgbokiite is biaxial (+); α = 2.05(1), β = 2.05(1), and γ = 2.08(1); 2V(meas.) is ∼03, and 2V(calc.) = 0(5)°. The optical orientation is X = a; other details remain unclear. The mineral is pleochroic, from grass green on X and Y to yellowish green on Z. The empirical formula calculated on the basis of O + Cl = 10 is Cu4.91 Pb0.02O1.86(ScO3)2 Cl2.14. The simplified formula is Cu5O2 (ScO3)2Cl2. Parageorgbokiite pertains to a new structural type of inorganic compounds. Its name points out its dimorphism with georgbokiite, which was named in honor of G.B. Bokii, the prominent Russian crystal chemist (1909-2000).
UR - http://www.scopus.com/inward/record.url?scp=38149037211&partnerID=8YFLogxK
U2 - 10.1134/S1075701507070057
DO - 10.1134/S1075701507070057
M3 - Article
AN - SCOPUS:38149037211
VL - 49
SP - 518
EP - 521
JO - Geology of Ore Deposits
JF - Geology of Ore Deposits
SN - 1075-7015
IS - 7
ER -
ID: 40648812