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Sapphirine

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KRM148394

Sapphirine

(Mg,Al)8(Al,Si)6O20

Description Tabs

Description
Locality: 
Katukubura Hills, Kolonne, Embilipitiya, Ratnapura District, Sabaragamuwa Province, Sri Lanka
Size Range: 
Thumbnail (1-3cm)
Size: 
2.3 × 1.7 × 1.5 cm
Description

  Sharp well doubly  terminated , lustrous , rare sapphronine.

No damage.

A very good specimen from the locality

Mineral Data
What's on the rock

Sapphirine

Formula: 
(Mg,Fe)4-xAl4+x[Al4+xSi2-xO18]O2
Strunz: 
9.DH.45
Hardness: 
7.5
Type Locality: 
Fiskenæsset old harbour, Fiskenæsset (Fiskenaesset; Qeqertarsuatsiaat), Nuuk (Godthåb), Sermersooq, Greenland

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