Nesosilicates
Kyanite
Kyanite
Chemical Formula : Al2SiO5
Mohs Scale : 4.5 - 7
Crystal System : Tricilinic
Garnet
Garnet
Chemical Formula : Fe3Al2Si3O12
Mohs Scale : 6.5 - 7
Crystal System : Cubic
Olivine
Olivine
Chemical Formula : (Mg,Fe)2SiO4
Mohs Scale : 6.5 - 7
Crystal System : Orthorhombic
This piece is from Eskişehir / Turkey
Hessonite
Hessonite
Chemical Formula : Ca3Al2(SiO4)3
Mohs Scale : 6.5 - 7
Crystal System : Cubic
Kyanite
Kyanite
Chemical Formula : Al2SiO5
Mohs Scale : 4.5 - 7
Crystal System : Tricilinic