General Information:
Chemical Formula:
(Ca,Mn,Na)2(Zr,Mn+++)5(Sb,Ti,Fe)2O16
Environment:
Isostructural with calzirtite. In a skarn assemplage resulted from
IMA Status:
Approved IMA 1995 (Dana # Added)
Locality:
The Langban iron-mangnaese deposit, Langban, Filipstad district, Varmland, Sweden.
Name Origin:
Named after Urban Hiarne (1641-1724), a pioneer in Swedish geology.
Physical Properties:
Cleavage:
None
Color:
bright red.
Density:
5.44
Diaphaniety:
Translucent
Habits:
Subhedral Crystals - Occurs as crystals which tend to exhibit a recognizable crystal shape., Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).,
Hardness:
7 - Quartz
Luminescence:
Non-fluorescent.
More details...