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Rhodochrosite & Guidottiite

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RHT756150

Rhodochrosite & Guidottiite

Classic Locality

Description Tabs

Description
Locality: 
Potosí Mine, Francisco Portillo, Santa Eulalia, Aquiles Serdán Municipality, Chihuahua, Mexico
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 5.8 × 3.8 cm
Weight: 
147.00gr
Description

Nice orange rhodochrosite crystals on matrix. The green crusts could be guidottiite. We had a similar specimen analyzed. This would be a new discovery for that mine and would be the second only known locality for that species. We cannot gurantee for guidottiite, but we can have an analysis made, if requested.

Guidottite is the Mn-analogue of cronstedtite.

Mineral Data
What's on the rock

Rhodochrosite

Formula: 
MnCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Cavnic Mine (Kapnikbánya), Cavnic (Kapnic; Kapnik), Maramureș Co., Romania

Guidottiite

Formula: 
Mn2Fe3+(Fe3+SiO5)(OH)4
Strunz: 
9.ED.15
Hardness: 
0.0
Type Locality: 
N'Chwaning II Mine, N'Chwaning Mines, Kuruman, Kalahari manganese field, Northern Cape Province, South Africa...

Seller Information

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Seller's terms and conditions

Rockhunter does not sell by size or weight. Sizes and weights given are just for the basic orientation of the buyer and shipment planning and might not be exact, even though we're always trying to be as exact as possible.

Photos might show the item in an enlarged or reduced dimension. Please refer to the given sizes. Please note that all photos have been adjusted – e.g., trimmed to show a certain aspect/a detail, colours adjusted, contrasts highlighted etc. to give the customer an optimal impression, while we try to stay as close to the natural appearance as possible. If it shows that photos cannot depict the natural appearance correctly, we will usually mention this (e.g., all Dioptase photos will never show the rich colour and lustre of the mineral). However, the colours on other photos might be a little off too. Also, computer screens might show colours differently.

We assume that the buyer has a basic knowledge of minerals and, on the one hand, has informed himself about possible toxicity and is aware of dangers in handling them. On the other hand, he must also have informed himself about how certain minerals are to be handled and stored – e.g., about resistance to cleaning agents and solvents, sensitivity to light and the like. Rockhunter accepts no liability whatsoever for injuries, health consequences and incorrect treatment of any kind.

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