Malayaite

malayaite

varlamoffite

wollastonite

cassiterite

Images

Formula: CaSnO(SiO4)
Nesosilicate (insular SiO4 groups), titanite group, tin-bearing mineral
Specific gravity:
Hardness: 3½ to 4
Streak: White
Colour: Pale creamy-yellow, deep orange-yellow
Solubility: Soluble in hydrochloric acid and in HF
Fluorescence: Bright yellowish green in short wave ultraviolet radiation
Common impurities: Fe
Environments

Pegmatites
Metamorphic environments

Malayaite is associated with hydrothermal alteration of a cassiterite-quartz assemblage and associated with varlamoffite in wollastonite-diopside and other tin-bearing skarns. It also occurs in granitic pegmatites (Dana). Other associated minerals include cassiterite, quartz, calcite, wollastonite, pyroxene and garnet (HOM).

Localities

The type locality is Sungei Lah, Chenderiang, Balang Padang, Perak, Malaysia.

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