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Mattheddleite

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GFM1044908

Mattheddleite

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Description Tabs

Description
Locality: 
Siebigerode, Mansfeld-Sudharz, Saxony - Anhalt, Germany
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 1.7 × 1 cm
Description

The rare Lead-Chlorine-Sulfo-Silicate appears here as a gray, shiny, compact crystal aggregate, with some Cerussite, Paramelaconite and Copper.

Mineral Data
What's on the rock

Mattheddleite

Formula: 
Pb5(SiO4)1.5(SO4)1.5(Cl,OH)
Strunz: 
9.AH.25
Hardness: 
3.5 - 4.5
Streak: 
white
Type Locality: 
Leadhills, South Lanarkshire, Strathclyde (Lanarkshire), Scotland, UK