The finding of the rare natural crystallohydrate lansfordite MgCO3⋅5H2O
S.S. Potapov, N.V. Parchina, O.Ya. Chervyatsova, P.Yu. Yakubson
The paper reports the finding of lansfordite MgCO3 ⋅ 5H2O, monoclinic natural ß-modification of pentahydrate magnesium carbonate, associated with karst cavities in massif of limestone in the Samara region. With the temperature areal survey were determined microclimatic conditions the formation of lansfordite. It is shown that its formation in mines occurred in subaerial conditions at +4.3 °C.
Figures 6. Table 1. References 21.
Key words: lansfordite, crystallohydrate, limestone, mining, karst, Samara.
MINERALOGY № 3 2015