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Hyalotekite & Leucosphenite

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Hyalotekite & Leucosphenite

Type Locality

Description Tabs

Description
Locality: 
Dara-i-Pioz Glacier, Tien Shan Mountains, Region of Republican Subordination, Tajikistan
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
2.8 × 2.5 × 1.8 cm
Description

Rich specimen of very rare, massive white-gray Hyalotekite with light yellow Leucosphenite in matrix. Fluorescens in SWUV. Analysed!

Mineral Data
What's on the rock

Hyalotekite

Formula: 
(Pb,Ba,K)4(Ca,Y)2(B,Be)2(Si,B)2Si8O28(F,Cl)
Strunz: 
9.CH.05
Hardness: 
5.5
Type Locality: 
Långban, Filipstad, Värmland, Sweden

Leucosphenite

Formula: 
BaNa4Ti2B2Si10O30
Strunz: 
9.DP.15
Hardness: 
6.0 - 6.5
Type Locality: 
Narsaarsuk pegmatite (Narssârssuk pegmatite), Narsaarsuk Plateau, Igaliku (Igaliko), Narsaq, Kujalleq, Greenland

Seller Information

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