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Lavrentiev
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Lavrentievite Hg3S2(Cl, Br)2; c 2001-2005 Mineral Data Publishing, version 1; Crystal Data: Monoclinic, perhaps triclinic. Point Group: 2/m, 2, or m. As complex intergrowths with arzakite, to 0.2 mm. Twinning: Noted. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any...
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by electron microprobe, corresponds to Hg3.00 S1.96 (Cl1.90 Br0.12 )=2.02 . (2) Hg3 S2 Cl2 . Polymorphism & Series: Dimorphous with lavrentievite. Occurrence: In lake-bed sediments and underlying silicified rhyolite tuffs, possibly of low-temperature secondary origin (McDermitt mine, Nevada, USA);
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Yellow - brown lavrentievite with red cinnabar crystals in matrix. Kadyrel'skoye Deposit, Tuva, Siberia, Russia.
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Lavrentievite - Wikipedia
La lavrentievite è un minerale. Webmin Solfuri e sali dello zolfo
it.wikipedia.org/wiki/Lavrentievite |
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INTRODUCTION Arzakite, Hg3S2(Br,Cl)2, and lavrentievite, Hg3S2 (Cl,Br)2, are rare mercury sulfohalides with closely related chemical compositions, discovered as a result of mineralogical studies of oxidized cinnabar-bearing ores of the Arzak and Kadyrel mineral deposits, Russia (Vasil'ev et al.
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1974), lavrentievite, Hg3S2(Cl,Br)2, arzakite, Hg3S2(Br, Cl)2 (Vasil'ev et al. 1984), radtkeite, Hg3S2ClI (McCormack et al. 1991), and the recently discovered kenhsuite, Hg3S2Cl2 (McCormack & Dickson 1998). All have a variable composition depending on the proportion and nature of the halogens in the crystal structure.
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0.5), have been prepared in attempts to synthesize lavrentievite, Hg3S2(Cl,Br)2 ... Lavrentievite and arzakite have similar physical and optical properties, ...
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0.5), i.e., compounds that are probably closely related (though not identical) to lavrentievite. The aim of this work is to report crystal structures of two ...
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History / Historique ... Physical properties / Propriétés physiques et apparence ... Miscellaneous / Autres informations...
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In reflectedlight white with creamy tint, ... Thus stopping at only Mnr , - ... The authors note the possibility of achieving the formula of Kunitz, but they feel that since no tourmaline near Mn. has been observed the originally defined composition is only hypothetical, this is not a sulficiently good reason to redefine tsilaisite.
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Lavrentiev
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