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Calcite

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CR628102

Calcite

Classic Locality

Description Tabs

Description
Locality: 
Campomorto Quarry, Montalto di Castro, Viterbo Province, Lazio, Italy
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
9 × 7.5 × 4.5 cm
Description

This classic tephrite lava quarry is well-known for exceptional hemispherical calcite specimens. A 2.2 cm, lustrous, translucent, tan, compound ball composed of tiny, stepped-growth rhombs is aesthetically set in the vesicle.

A striking and excellent specimen. Many came out in the late 1980s but they have been scarce since. This is a good one. Acquired 1979

Mineral Data
What's on the rock

Calcite

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