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Rhodochrosite Quartz Sphalerite & Galena

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MGR199289

Rhodochrosite Quartz Sphalerite & Galena

Description Tabs

Description
Locality: 
Pachapaqui District, Bolognesi Province, Ancash Department, Peru
Size Range: 
Cabinet (10-18 cm)
Size: 
10.6 × 7.3 × 6.6 cm
Description

The specimen shows a very fine combination of minerals. The quartz spheres are partly covered with rhodochrosite - I show some close-up photos. The contrast of quartz and rhodochrosite, as well colour of rhodochrosite is better in person. The jet-black, sharp terminated and lustrous sphalerite crystals help to give even more tri-dimensional impact to this very well-formed and aesthetic specimen. Much better in person and undamaged! 

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

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

Sphalerite

Formula: 
ZnS
Strunz: 
2.CB.05a
Crystal System: 
Isometric
Hardness: 
3.5 - 4.0

Galena

Formula: 
PbS
Strunz: 
2.CD.10
Crystal System: 
Isometric
Hardness: 
2.5
Colour: 
Lead-grey
Streak: 
Lead-grey