Groutite on Petrified Wood (Mullane Coll.)

Black Water Mine, Black Mesa Basin, Apache Co., Arizona
Small Cabinet, 9.5 x 4.8 x 4.0 cm
Start Time: 07/22/2010 6:30:00 pm (CDT)
End Time: 07/29/2010 6:30:00 pm (CDT)
Auction Closed

Item Description

Groutite is a rare manganese oxide. Lustrous needles of groutite, to 3 mm, are richly scatttered on the crest of both sides of the banded, quartz-replaced petrified wood! I have seen just a few specimens of this material before, and in every case it sold immediately - this is rare, hard to obtain material. This sculptural, VERY LARGE specimen for the species is from a remarkable and so far unique find in 1975. A miner who"d worked in the area for years brought in a small lot of specimens to a rock shop owned by Lolette Dalbeck in Ridgecrest, California. Ex Mullane Collection.

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