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Sillimanite

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WND560493

Sillimanite

Description Tabs

Description
Locality: 
Ossola Valley, Verbano-Cusio-Ossola Province, Piedmont, Italy
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
5.7 × 8.7 × 2.3 cm
Largest Crystal: 
5.10cm
Description

Grey, lustrous, prismatic sillimanite crystals up to 5.1 cm embedded in matrix from Nibbio in Ossola Valley in Italy. The largest crystal was broken during tectonic movements and later bent and re-healed. A really interesting specimen, also from the point of view of geological history.

Mineral Data
What's on the rock

Sillimanite

Formula: 
Al2(SiO4)O
Strunz: 
9.AF.05
Crystal System: 
Orthorhombic
Hardness: 
6.5 - 7.5
Streak: 
white
Type Locality: 
Chester, Middlesex Co., Connecticut, USA

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

Our Terms & Conditions can be found at:​ https://www.wendel-minerals.com/en/shop/agb.php

 

 

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