Summary: A new occurrence of varlamoffite is described, and the status of this species is considered; the term is best employed for cryptocrystalline yellowish material consisting predominantly of Sn and H20 that may yield a diffuse powder pattern comparable to, or closely resembling that of cassiterite, but does yield a powder pattern identical with that of cassiterite after heat-treatment at about 1200° C. A new mineral, malayaite, CaSnSiO5, is briefly described; it is isostructural with sphene.
Mineralogical Magazine; December 1965 v. 35; no. 272; p. 622-627; DOI: 10.1180/minmag.1965.035.272.05
© 1965, The Mineralogical Society
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