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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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