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Barytolamprophyllite

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HCH502357

Barytolamprophyllite

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Description
Locality: 
Graulai Quarry, Hillesheim, Eifel, Rhineland-Palatinate, Germany
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1.5 × 1 cm
Largest Crystal: 
0.03cm
Description

Small brown tabulare crystals up to 0.3 mm large are sitting on matrix. Without a analyses it isn´t really to say what kind of mineral of the Barytolamprophyllite-group we have on this offered speciem. Maybe Emmerichite, Schüllerite or Lileyite.

Mineral Data
What's on the rock

Barytolamprophyllite

Formula: 
(Ba,Na)2(Na,Ti,Fe3+)4Ti2(Si2O7)2O(OH,F)
Strunz: 
9.BE.25
Crystal System: 
Monoclinic
Hardness: 
2.0 - 3.0
Type Locality: 
Kukisvumchorr Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia...

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