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Hydromagnesite

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SER996807

Hydromagnesite

ex Americo Urbinati collection

Description Tabs

Description
Locality: 
Rocca Castellaccio, Ciappanico, Torre di Santa Maria, Malenco Valley, Lombardy, Italy
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 7.1 × 0.8 cm
Description

a large flat specimen covered by white hydromagnesite tiny crystals

Mineral Data
What's on the rock

Hydromagnesite

Formula: 
Mg5(CO3)4(OH)2·4H2O
Strunz: 
5.DA.05
Crystal System: 
Monoclinic
Hardness: 
3.5
Type Locality: 
Castle Point, Hoboken, Hudson Co., New Jersey, USA