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Hiortdahlite

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CHA606662

Hiortdahlite

Classic Locality

Description Tabs

Description
Locality: 
San Vito Quarry, Ercolano, Monte Somma, Somma-Vesuvius, Naples, Campania, Italy
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.2 × 2.3 × 2.2 cm
Description

specimen with very nice uncommon aggregateof yellow crystals of hiortdahlite on matrix of sanidine

Mineral Data
What's on the rock

Hiortdahlite

Formula: 
(Ca,Na)3(Zr,Ti)(Si2O7)(O,OH,F)2
Strunz: 
9.BE.17
Crystal System: 
Triclinic
Hardness: 
5 - 5½
Colour: 
Yellow, yellowish-brown

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