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Götzenite & Barytolamprophyllite

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HCH120047

Götzenite & Barytolamprophyllite

Description Tabs

Description
Locality: 
Rother Kopf, Roth, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 2 × 1.5 cm
Largest Crystal: 
0.10cm
Description

Lightbrownish needels of goetzenite up to 1 mm large with epitaxis of small tabulare barytolamprophyllite crystals on it.

Mineral Data
What's on the rock

Götzenite

Formula: 
Na2Ca5Ti(Si2O7)2F4
Strunz: 
9.BE.22
Crystal System: 
Triclinic
Hardness: 
5.5 - 6.0
Streak: 
White
Type Locality: 
Mt Shaheru, Mt Nyiragongo, Goma, Kivu, Democratic Republic of Congo (Zaïre)

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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