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Plumbogummite

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BMM957254

Plumbogummite

Description Tabs

Description
Locality: 
Yangshuo Mine, Yangshuo County, Guilin, Guangxi, China (Peoples Republic)
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 3 × 2.7 cm
Description

Thick yellow green crystals of pyromorphite up to 2 cm in length forming a compact cluster without matrix. These crystals are beginning to be replaced by light bluish green plumbogummite. Crystals show both hopper and terminated growth. This is in good condition all around.

Mineral Data
What's on the rock

Plumbogummite

Formula: 
PbAl3(PO4)2(OH)5·H2O
Strunz: 
8.BL.10
Hardness: 
4.0 - 5.0
Type Locality: 
Huelgoat (Locmaria-Berrien), Finistère, Brittany, France