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Nanpingite

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SKY810278

Nanpingite

Type Locality

Description Tabs

Description
Locality: 
Nanping Pegmatite, Yanping District, Nanping, Fujian Province, China (Peoples Republic)
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 1.5 × 0.7 cm
Description

Outstanding silver white crystals of this extremely rare cesium mineral nanpingite from the type locality in Nanping, China.

Very rich specimen for the quantity of nanpingite crystals present !. Photo 1 shows a fairly well formed crystal.

Cesium minerals are very rare in Nature since only 32 Cesium minerals species exist from a total of 5638 species known (source Mindat).

Ex Vandenbroucke Museum collection from Waregem, Belgium.

 

Mineral Data
What's on the rock

Nanpingite

Formula: 
CsAl2(AlSi3O10)(OH,F)2
Strunz: 
9.EC.15
Hardness: 
2.5 - 3.0
Type Locality: 
Pegmatite no. 31 (Xikeng Mine; Xiyuantou), Nanping pegmatite field (Xikeng pegmatite field), Yanping District, Nanping Prefecture, Fujian Province, China

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