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Segnitite

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CR47361

Segnitite

Rare Mineral

Description Tabs

Description
Locality: 
Alto das Quelhas do Gestoso Mine, Gestoso, São Pedro do Sul, Viseu District, Portugal
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 3.5 × 3.5 cm
Description

Yellow to yellobrown sharp segnitite microcrystals on quartz crystals in a vug.

With minor carminite

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