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Manganite With Baryte

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QRI634412

Manganite With Baryte

Classic Locality

Description Tabs

Description
Locality: 
Pinal County, Arizona, United States of America
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.7 × 3.7 × 2.7 cm
Largest Crystal: 
0.30cm
Weight: 
84.00gr
Description

Rich miniature with quite good prismatic, jet black crystals of manganite in powdery - yet, rather solid - manganese ore from Pinal Co., Arizona.
Manganite shows the typical striations and it is extremely lustrous for the specie, and it is associated to candid white baryte blades.

Very unusual specimen, it was acquired in the US in the 1960s. Unfortunately the precise mine is not reported, however given the paragenesis it is possible that the specimen comes from the Geronimo claims (Steamboat Mountain area, Banner District, Dripping Spring Mts).

A specimen from an intriguing locality.

Mineral Data
What's on the rock

Manganite

Formula: 
Mn3+O(OH)
Strunz: 
4.FD.15
Hardness: 
4.0
Type Locality: 
Manganese deposit, Ilfeld, Nordhausen, Harz, Thuringia, Germany

Baryte

Formula: 
BaSO4
Strunz: 
7.AD.35
Hardness: 
3.0 - 3.5
Streak: 
White

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

Shipping within 15 days after payment received, unless specified/agreed otherwise.

NOTE:
Due to a very busy holiday schedule, specimens paid after Dec 14 will be shipped by Januar 7. For any information or combined shipping please contact me.

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