Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Amethyst & Calcite

Views:
Watches:
NST688656

Amethyst & Calcite

Description Tabs

Description
Locality: 
Osilo, Sassari Province, Sardinia, Italy
Class: 
Crystals on Matrix
Size Range: 
Museum (18cm plus)
Size: 
23.5 × 11 × 8.5 cm
Largest Crystal: 
2.30cm
Weight: 
1 294.00gr
Description

A large vug coated with colorless Calcites and several violet Amethysts up to 2.3 cm. A fine and showy old-timer from Osilo.

Mineral Data
What's on the rock

Amethyst

Variety Of: 

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Hardness: 
7.0
Formula: 
SiO2
Hardness: 
0.0
Colour: 
Purple

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White