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Rossmanite

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CAM166806

Rossmanite

Description Tabs

Description
Locality: 
Dobrá Voda, Křižanov, Žďár nad Sázavou, Vysočina Region, Czech Republic
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 1.6 × 1.4 cm
Description

A very good example of rossmanite, a rare tourmaline group member, with several sprays of light pink rossmanite in matrix associated with some minor purple lepidolite.
Analyzed specimen from the collection of Dr Jaroslav Hyrsl.

Mineral Data
What's on the rock

Rossmanite

Formula: 
☐(LiAl2)Al6(Si6O18)(BO3)3(OH)3(OH)
Strunz: 
9.CK.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White.
Type Locality: 
Rožná pegmatite (Rozna; Roschna), Žďár nad Sázavou, Vysočina Region, Moravia (Mähren; Maehren), Czech Republic
Cartils Minerals

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