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Harmotome

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MNT51764

Harmotome

Ex Dr F Krantz (Bonn Germany)
Type Locality

Description Tabs

Description
Locality: 
St Andreasberg District, Lower Saxony, Germany
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.4 × 3.1 × 2.1 cm
Description

A rich old-timer and classic example of glassy and lustrous, grayish-white harmotome crystals from the type locality, St. Andreasberg, Germany. Ex Krantz.

Mineral Data
What's on the rock

Harmotome

Formula: 
(Ba0.5,Ca0.5,K,Na)5[Al5Si11O32] ·12H2O
Strunz: 
9.GC.10
Crystal System: 
Monoclinic
Hardness: 
4.0 - 5.0
Streak: 
White
Type Locality: 
St Andreasberg, St Andreasberg District, Harz, Lower Saxony, Germany

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

Terms & Conditions

Thank you for your interest in my offers! Payment is possible via Paypal, bank transfer or cash if you pick up the item(s) personally. Bank data will be provided after settling the auction/transaction(s) if needed.

In case you are not happy with a specimen, you may send it back within 4 weeks. After receipt, i will refund the price minus shipping costs. Please inform me before sending an item back. If you have any questions (or maybe complaints) please feel free to contact me.

Best regards Roger