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Rossmanite

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Watches:
MNR564171

Rossmanite

ex. Marek Patus collection
Type Locality

Description Tabs

Description
Locality: 
Rožná Hradisko, Rožná Pegmatite, Žďár nad Sázavou, Vysočina Region, Czech Republic
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 3.9 × 2.4 cm
Largest Crystal: 
1.50cm
Description

Rare tourmaline Rossmanite from it's type locality. Crystals up to 1.5 cm are well developed and fresh (not that common for locality). Rossmanites are nice pink color with few black schorl tourmaline crystals. Comes out of my own collection.

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