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Akermanite is an example of :

  • A.Cyclosilicate
  • B.Tectosilicate
  • C.Sorosilicate
  • D.Nesosilicate

Answer: C

Akermanite is a sorosilicate.

Akermanite, Ca2MgSi2O7, is an end-member of the melilite group. Its structure is built of pairs of silica tetrahedra sharing one oxygen, Si2O7 groups, which is the defining feature of sorosilicates.

Nesosilicates such as olivine and garnet have isolated SiO4 tetrahedra, cyclosilicates such as beryl have rings of tetrahedra, and tectosilicates such as quartz and feldspar have three-dimensional frameworks.

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