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Grantsite & Schäferite

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CSL508408

Grantsite & Schäferite

Rare Mineral

Description Tabs

Description
Locality: 
Liebenbergite Dump, Sounion, Agios Konstantinos, Lavrion District, Attiki Prefecture, Greece
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.9 × 1.6 × 1.6 cm
Description

This is a very interesting combination of very rare vanadate mineral grantsite and a vanadium bearing garnet group mineral schäferite. Grantsite forms yellow sprays with dark brown crystals of schäferite on slag matrix. Associating minerals are white nosean in good crystals and tiny yellow-green crystals of liebenbergite.

Mineral Data
What's on the rock

Grantsite

Formula: 
(Na,Ca)V6O16·4H2O
Strunz: 
4.HG.55
Hardness: 
1.0 - 2.0
Type Locality: 
F33 Mine, Grants District, Cibola Co., New Mexico, USA

Schäferite

Formula: 
Ca2NaMg2(VO4)3
Strunz: 
8.AC.25
Crystal System: 
Isometric
Hardness: 
5.0
Streak: 
Yellow
Type Locality: 
Caspar quarry, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germany
Loranth Minerals

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