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Schorl

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NST729331

Schorl

Description Tabs

Description
Locality: 
Blue Sky Prospect, Santa Cruz, Santa Cruz Municipality, Sonora, Mexico
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.7 × 4 × 3.8 cm
Description

Two intergrown aggregates of Schorl showing subindividual growth which leads to a satin lustre

Mineral Data
What's on the rock

Schorl

Formula: 
Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Strunz: 
9.CK.05
Hardness: 
7.0