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Bannisterite

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AMM927766

Bannisterite

Description Tabs

Description
Locality: 
Arschitza Mine, Iacobeni, Suceava County, Romania
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
1.8 × 1.3 × 1 cm
Description

Rich specimen with dark brown to black flat bannisterite aggregates.

Mineral Data
What's on the rock

Bannisterite

Formula: 
Ca0.5(K,Na)0.5(Mn,Fe,Zn)10(Si,Al)16O38(OH)8·5.5H2O
Strunz: 
9.EG.75
Crystal System: 
Monoclinic
Hardness: 
4.0
Type Locality: 
Benallt Mine (Tyddyn Meirion mine; Ty Canol mine), Rhiw, Llanfaelrhys, Lleyn Peninsula, Gwynedd (Caernarvonshire), Wales, UK

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

Accepted payment methods: PayPal, bank transfer.

Money back guarantee is valid until 14 days after receiving the payment. The refund will be initiated immediately upon receiving the minerals back. Due to the return time, there may be a delay in the refund.