Rahul Sharma (Editor)

Larnite

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Category
  
Nesosilicates

Strunz classification
  
9.AD.05

Space group
  
P21/n

Formula(repeating unit)
  
Ca2SiO4

Crystal system
  
Monoclinic

Crystal class
  
Prismatic (2/m)(same H-M symbol)

Larnite is a calcium silicate mineral with formula: Ca2SiO4.

It was first described from an occurrence at Scawt Hill, Larne, Northern Ireland in 1929 by Cecil Edgar Tilley and named for the location. At the type locality it occurs with wollastonite, spurrite, perovskite, merwinite, melilite and gehlenite. It occurs in contact metamorphosed limestones and chalks adjacent to basaltic intrusives.

Dicalcium silicate is chemically, β–Ca2SiO4, sometimes represented by the formula 2CaO·SiO2. When used in the cement industry, the mineral is usually referred to as belite.

References

Larnite Wikipedia


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