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Segnitite

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JYJ540743

Segnitite

Description Tabs

Description
Locality: 
Lagoa Mine, Estorãos, Ponte de Lima, Viana do Castelo District, Portugal
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1.2 × 0.8 cm
Description

A fine specimen hosting filigrane segnitite on quartz.

Mineral Data
What's on the rock

Segnitite

Formula: 
PbFe3+3(AsO4)2(OH,H2O)6
Strunz: 
8.BL.10
Crystal System: 
Trigonal
Hardness: 
4.0
Type Locality: 
Kintore opencut, Broken Hill, Yancowinna Co., New South Wales, Australia