Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Cryptomelane & Lithiophorite

Views:
Watches:
PDM920377

Cryptomelane & Lithiophorite

Description Tabs

Description
Locality: 
Los Ardales, Pozuelo de Calatrava, Ciudad Real, Castilla La Mancha, Spain
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
2.3 × 2 × 1.7 cm
Weight: 
33.00gr
Description

4 spheroidal pieces formed by onion-like multi-layered concretions of black manganese oxides, composed mainly by cryptomelane and lithiophorite. Detailed information of this locality and analyses of these pisolithic concretions can be found in the bibliography (e.g. Crespo et al., 1995; 1997). The “Los Ardales” deposit was excavated, sieved for these balls and backfilled, and now is depleted. They were extracted for the Manganese but they were also rich in Cobalt.

Combine specimens to reduce shipping costs!.

 

Crespo, A., Lunar, R., Oyarzun, R.; Doblas, M. (1995). Unusual case of hot springs- related Co-rich Mn Mineralization in central Spain: The Pliocene Calatrava deposits. Economic Geology, 90, 433-437.

Crespo, A.; Lunar, R. (1997). Terrestrial hot- spring Co-rich Mn mineralization in the Pliocene-Quaternary Calatrava Region (central Spain). Geological Society Special Publication, 119, 253-264.

Mineral Data
What's on the rock

Cryptomelane

Formula: 
K(Mn4+7Mn3+)O16
Strunz: 
4.DK.05a
Crystal System: 
Tetragonal
Hardness: 
5.0 - 6.5
Type Locality: 
Tombstone, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA

Lithiophorite

Formula: 
(Al,Li)MnO2(OH)2
Strunz: 
4.FE.25
Crystal System: 
Monoclinic
Hardness: 
3.0
Type Locality: 
Spitzleithe, Schneeberg District, Erzgebirge, Saxony, Germany

Seller Information

Payment options: offline, paypal_wpp, paypal_wps