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Nepheline Leucite Melilite & Vonsenite

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POL808051

Nepheline Leucite Melilite & Vonsenite

Description Tabs

Description
Locality: 
Osa Quarry, Osteria dell'Osa, Rome Province, Lazio, Italy
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 3.9 × 2.4 cm
Description

Very well formed  grey Nepheline crystals with white Leucite, brown Melilite and acicular Vonsenite-Ludwigite

Mineral Data
What's on the rock

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

Leucite

Formula: 
K(AlSi2O6)
Strunz: 
9.GB.05
Hardness: 
5.5 - 6.0
Type Locality: 
Monte Somma, Somma-Vesuvius Complex, Naples Province, Campania, Italy

Melilite

Group Parent: 
Melilite Group

Vonsenite

Formula: 
Fe2+2Fe3+(BO3)O2
Strunz: 
6.AB.30
Hardness: 
5.0
Type Locality: 
Old City Quarry (City Quarry), North Hill, Fairmont Park, Riverside, Riverside Co., California, USA

Seller Information

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Seller's terms and conditions

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