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Hilgardite & Boracite

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SKY1146212

Description Tabs

Description
Locality: 
Boulby Mine, Loftus, North Yorkshire, United Kingdom
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1 × 0.7 × 0.4 cm
Description

Sharp orange crystals of hilgardite associated to almost colorless boracite from Boulby.

Ex. Erich Laskowski collection (USA) .

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Note for USA Customers : NO Tariffs/Taxes/ Duties for minerals.

According to the latest information, customs duties will no longer apply to goods such as mineral specimens. 

Until the low-cost shipping option is available again as usual, I can hold several specimens in multiple auctions to reduce shipping costs. Subsequent invoices are postage-free up to 250 g final weight

Mineral Data
What's on the rock

Hilgardite

Formula: 
Ca2B5O9Cl·H2O
Strunz: 
6.ED.05
Hardness: 
5.0
Streak: 
White
Type Locality: 
Choctaw Salt Dome (Bayou Choctaw Salt Dome), Plaquemine, Iberville Parish, Louisiana, USA

Boracite

Formula: 
Mg3(B7O13)Cl
Strunz: 
6.GA.05
Crystal System: 
Orthorhombic
Hardness: 
7.0 - 7.5
Streak: 
White
Type Locality: 
Lüneburger Kalkberg, Lüneburg, Lower Saxony, Germany

Current price

Starting price

14
(reserve not met) (reserve met)

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Start 20 Feb 18:00
End
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Shipping Information

Postage Area Price
Spain
7
Europe (up to 250g).
15
USA (up to 250g). No duties or taxes applied
20
Rest of the World (up to 250g).
20

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Bid History

Full bid history