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Manandonite

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PDM740647

Manandonite

Type Locality

Description Tabs

Description
Locality: 
Antandrokomby Pegmatite, Manandona Valley, Ambositra, Amoron'i Mania, Madagascar
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.4 × 5 × 4.2 cm
Description

Dull white to light pink tabular manandonite crystals that form interlocked rosettes of 2mm in size, richly covering a quartz – microcline – rubellite pegmatitic rock. Good example, representative of the locality, and with good size.

Found in 1997-98, it is an Ex. Johan Muizebelt specimen.

Mineral Data
What's on the rock

Manandonite

Formula: 
Li2Al4(Si2AlB)O10(OH)8
Strunz: 
9.ED.15
Hardness: 
2.5 - 3.5
Type Locality: 
Antandrokomby pegmatite, Manandona Valley, Sahatany Pegmatite Field (Mt Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar

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