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.
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