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Quartz

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TBM892747

Quartz

Classic Locality

Description Tabs

Description
Locality: 
Porretta Terme, Bologna Province, Emilia-Romagna, Italy
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 4 × 3.5 cm
Weight: 
87.00gr
Description

Classic sample for this locality. Large cluster double-terminated crystal with evident clay inclusions and "hoppered" shape.

Mineral Data
What's on the rock

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White