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Schorlomite & Nepheline

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NST723773

Schorlomite & Nepheline

Description Tabs

Description
Locality: 
Jebel Bou-Agrao, Tamazeght, Khénifra Province, Béni Mellal-Khénifra Region, Morocco
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 4 × 3.5 cm
Description

A typically etched sample of greenish-white Nepheline on black Schorlomite.

Mineral Data
What's on the rock

Schorlomite

Formula: 
Ca3(Ti,Fe3+)2((Si,Fe3+)O4)3
Strunz: 
9.AD.25
Crystal System: 
Isometric
Hardness: 
7.0 - 7.5
Type Locality: 
Magnet Cove, Hot Spring Co., Arkansas, USA

Nepheline

Formula: 
(Na,K)AlSiO4
Strunz: 
9.FA.05
Hardness: 
5.5 - 6.0
Type Locality: 
Monte Somma, Somma-Vesuvius Complex, Naples Province, Campania, Italy