Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Alleghanyite & Rhodochrosite

Views:
Watches:
JYJ894822

Alleghanyite & Rhodochrosite

Description Tabs

Description
Locality: 
NChwaning Mines, Kuruman, Northern Cape Province, South Africa
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.9 × 1.9 × 1.7 cm
Description

Orange-red alleghanyite with rhodochrosite from the NChwaning mines, South Africa. SEM-EDS & SXRD (Pseudo Gandolfi) confirmed no 947. 

 

 

Mineral Data
What's on the rock

Alleghanyite

Formula: 
Mn2+5(SiO4)2(OH)2
Strunz: 
9.AF.45
Crystal System: 
Monoclinic
Hardness: 
5.5
Type Locality: 
Bald Knob, Sparta, Alleghany County, North Carolina, United States of America

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