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Cuspidine

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QRI806101

Cuspidine

Former collection Christian Mavris
Type Locality

Description Tabs

Description
Locality: 
San Vito Quarry, Ercolano, Monte Somma, Somma-Vesuvius, Naples, Campania, Italy
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.2 × 4.7 × 4.3 cm
Largest Crystal: 
0.30cm
Weight: 
139.00gr
Description

The Somma-Vesuvius complex is the type locality for this very rare specie. The current specimen nicely shows sharp creamy cuspidine crystals grown on top in the matrix vugs, associated to dark brown vesuvianite and green lustrous phyllosilicates. On a side vug, one cuspidine crystal appears covered (epimorphed?) by a secondary yellow creamy crystals, possibly nepheline.

Excellent crystals for this rare specie!

Mineral Data
What's on the rock

Cuspidine

Formula: 
Ca4(Si2O7)(F,OH)2
Strunz: 
9.BE.17
Hardness: 
5.0 - 6.0
Streak: 
White
Type Locality: 
Monte Somma, Somma-Vesuvius Complex, Naples Province, Campania, Italy

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