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Marialite Scapolite & Magnetite

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RHT671442

Marialite Scapolite & Magnetite

ex collection H. Holtkamp, B. Stürtz in Bonn
With Antique Label

Description Tabs

Description
Locality: 
French Creek Mines, St Peters, Chester County, Pennsylvania, United States of America
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.2 × 4 × 3 cm
Largest Crystal: 
1.00cm
Description

A very good specimen with yellowish marialite and beige, dull scapolite crystals up to 1.0 cm + black magnetite.

An old-time classic with an antique German label (pre 1919).

Mineral Data
What's on the rock

Marialite

Formula: 
Na4Al3Si9O24Cl
Strunz: 
9.FB.15
Hardness: 
5.5 - 6.0
Streak: 
White
Type Locality: 
Pianura, Phlegrean Fields, Naples Province, Phlegrean Volcanic complex, Campania, Italy

Magnetite

Formula: 
Fe2+Fe3+2O4
Strunz: 
4.BB.05
Crystal System: 
Isometric
Hardness: 
5.5 - 6.5
Streak: 
Black
Labels
Label Images - only: Marialite Scapolite & Magnetite
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