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Calcite & Laumontite

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MNT743676

Calcite & Laumontite

ex Dr. F. Krantz, Bonn, GER; ex ?
Classic Locality

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Description
Locality: 
Montecatini Val di Cecina, Pisa Province, Tuscany, Italy
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 4.5 × 3.3 cm
Weight: 
100.00gr
Description

Old timer from the verge of the 19th/20th century: a kind of geode is lined with white calcite crystals and relics of laumontite. Note the old synonym for laumontite (Schneiderite) on the label.

Mineral Data
What's on the rock

Calcite

Polymorph of: 
Aragonite and Vaterite
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

Laumontite

Formula: 
CaAl2Si4O12·4H2O
Strunz: 
9.GB.10
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Huelgoat (Locmaria-Berrien), Finistère, Brittany, France

Seller Information

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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

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