Siliceous Calcite (twin) (ex Jim Robison)

Sandoval County, New Mexico
Thumbnail, 2.1 x 1.3 x 0.8 cm
Start Time: 09/17/2015 6:45:00 pm (CDT)
End Time: 09/24/2015 6:45:00 pm (CDT)
Auction Closed
View Closed Auction Set

Item Description

An interesting mineral oddity and a really cool overall thumbnail from the famous carbonate collection of Jim Robision. The piece features an "X"-twinned crystal group of Calcite which is included with silica (SiO2) as the principal constituent. Good quality, excellent crystal form and a unique to be sure.

Did You Know We Offer Custom Bases?

Learn More

Miss this auction? Buy Calcite mineral specimens on iRocks.com