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Hinsdalite & Plumbogummite

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CR961934

Hinsdalite & Plumbogummite

SEM-EDS analysed
Rare Mineral

Description Tabs

Description
Locality: 
Serra da Mina Mine, Cercal, Santiago do Cacém, Setúbal District, Portugal
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.8 × 4 × 4.5 cm
Description

This is a very rich and good of two very rare mineral.

Yellow Hinsdalite crystals and brown Plumbogummite crystals all over the matrix.

Specimen is well analysed and hosts a solid solution between both minerals too.

 

Mineral Data
What's on the rock

Hinsdalite

Formula: 
PbAl3(PO4)(SO4)(OH)6
Strunz: 
8.BL.05
Crystal System: 
Trigonal
Hardness: 
4.5
Streak: 
White
Type Locality: 
Golden Fleece Mine, Lake City, Lake City District (Lake District), Hinsdale Co., Colorado, USA

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
Analysis
Analysis Report - only: Hinsdalite & Plumbogummite
Analysis Report - only: Hinsdalite & Plumbogummite
Analysis Report - only: Hinsdalite & Plumbogummite
Analysis Report - only: Hinsdalite & Plumbogummite