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Wilhelmgümbelite

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SKY700680

Wilhelmgümbelite

Type Locality

Description Tabs

Description
Locality: 
Hagendorf South Pegmatite, Bavaria, Germany
Class: 
Crystals on Matrix
Size Range: 
Micromount (under 1cm)
Size: 
0.1 × 0.1 × 0.1 cm
Description

Orange-brown crystals of the extremely rare new mineral wilhelmgumbelite (IMA 2015-072 and published in 2017), from the type and only known locality worldwide in Hagendorf mine.

Willhelmgumbelite is a Zn-Fe phosphate.

Specimen analyzed by SEM/REM (see copy enclosed). The analysis shows it is a Mn-rich wilhelmgumbelite.

Mineral Data
What's on the rock

Wilhelmgümbelite

Formula: 
ZnFe2+Fe3+3(PO4)3(OH)4(H2O)5·2H2O
Crystal System: 
Orthorhombic
Colour: 
Light yellow-brown to orange-red
Type Locality: 
Hagendorf South Pegmatite (Cornelia Mine; Hagendorf South Open Cut), Hagendorf, Waidhaus, Upper Palatinate, Bavaria, Germany

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