Hydroboracite w/ Colemanite

Thompson Mine, Ryan, Inyo Co., California
Small Cabinet, 6.7 x 4.9 x 3.8 cm
Start Time: 06/29/2014 6:45:00 pm (CDT)
End Time: 07/03/2014 6:30:00 pm (CDT)
Auction Closed

Item Description

Hydroboracite is a rare hydrated borate and this mine produced most of the good specimens found in the US. Diverging clusters of waxy blades compose nearly all of the mounded plate. Tan colemanite is a nice accessory to this very rich specimen. Essentially pristine, uncommon to this rich rarity from an extinct locale.

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