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Schorl

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SYM170381

Schorl

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Description
Locality: 
May Downs Station, Mount Isa City Shire, Queensland, Australia
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 2 × 1.5 cm
Description

Single black crystal of schorl.

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