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Sapphirine

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SYA1029277

Sapphirine

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Description
Locality: 
Tranomaro, Amboasary Sud, Anosy, Madagascar
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 3.5 × 2.5 cm
Largest Crystal: 
0.70cm
Description

Sharp, lustrous blue-grey sapphirine crystals up to  7 mm

with bronce-brown phlogopite in pegmatite matrix.

 

       Please note the recent article in LAPIS 1/2024

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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