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Sailaufite

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JYJ669054

Sailaufite

Description Tabs

Description
Locality: 
Sailauf, Lower Franconia, Bavaria, Germany
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 5.5 × 1.5 cm
Description

This is a very rich sample hosting many brownish-black aggregates of sailaufite with bunches of brandtite. Several cavities are filled with this assemblage. A limited number of specimens were found at that place in this quality. 

Mineral Data
What's on the rock

Sailaufite

Formula: 
(Ca,Na,☐)2Mn3+3(AsO4)2(CO3)O2·3H2O
Strunz: 
8.DH.30
Hardness: 
4.0 - 0.0
Streak: 
Brown
Type Locality: 
Fuchs Quarry, Hartkoppe, Sailauf, Hösbach, Spessart, Franconia, Bavaria, Germany