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Wallkilldellite-(Fe)

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CR941060

Wallkilldellite-(Fe)

Rare Mineral

Description Tabs

Description
Locality: 
Murton Mine, Scoredale, Cumbria, United Kingdom
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.4 × 1.8 × 1.5 cm
Description

This is a very richt and beautiful specimen of the rare mineral wallkilldellite-Fe on matrix.

Analysed specimen.

Mineral Data
What's on the rock

Wallkilldellite-(Fe)

Formula: 
(Ca,Cu)4Fe2+6(AsO4,SiO4)4(OH,O)8·18H2O
Strunz: 
8.DL.20
Crystal System: 
Hexagonal
Hardness: 
2.0 - 3.0
Type Locality: 
Roua Mines (Clue de Roua), Daluis, Guillaumes, Alpes-Maritimes, Provence-Alpes-Côte d'Azur, France...