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Trilithionite

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GND26081

Trilithionite

Rare Mineral

Description Tabs

Description
Locality: 
Londonderry Li Deposit, Nepean, Western Australia, Australia
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 5.5 × 4.5 cm
Description

A lovely piece of this lithium mica often referred to as lepidolite or zindwaldite. All tests done on this mineral seem to indicate a composition closest to trilithionite in the series.

Forms here as compact radiating fan like crystals with white calcite. Displays very well.

Mineral Data
What's on the rock

Trilithionite

Formula: 
K(Li1.5Al1.5)(AlSi3O10)(F,OH)2
Strunz: 
9.EC.20
Crystal System: 
Monoclinic
Hardness: 
0.0
Gondwana Minerals