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Calderónite & Plumbogummite

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JYJ708039

Calderónite & Plumbogummite

Description Tabs

Description
Locality: 
Silver Coin Mine, Valmy, Nevada, United States of America
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 2.8 × 1.9 cm
Description

This is a quite interesting specimen with an unusual assemblage of yellow orange calderonite & colorless plumbogummite. Attached is the SEM-EDS analysis and a picture in backscatter electron mode. 

Mineral Data
What's on the rock

Calderónite

Formula: 
Pb2Fe3+(VO4)2(OH)
Strunz: 
8.BG.05
Hardness: 
3.0 - 4.0
Type Locality: 
Las Colmenitas Mine, Santa Marta, Badajoz, Extremadura, Spain

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: Calderónite & Plumbogummite
Analysis Report - only: Calderónite & Plumbogummite
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