Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Groutite On Petrified Wood

Views:
Watches:
PDM865865

Groutite On Petrified Wood

Description Tabs

Description
Locality: 
Blackwater Mine, Yazzie Mesa, Apache County, Arizona, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.3 × 1.5 × 1 cm
Description

Black lustrous prismatic crystals of groutite scattered over a matrix of translucent red-brown chalcedony replaced petrified wood. The specimen has a good size and it is in great condition. Apparently only a handful specimens were recovered in a single find in 1975.

Acquired in 1984 by Bob Janssens (#412b).

Mineral Data
What's on the rock

Groutite

Formula: 
Mn3+O(OH)
Strunz: 
4.FD.10
Hardness: 
3.5 - 4.0
Type Locality: 
Sagamore Mangan No. 2 pit, Ironton, Cuyuna North Range, Crow Wing Co., Minnesota, USA

Seller Information

Payment options: offline, paypal_wpp, paypal_wps