nesosilicates (1:4) Flashcards
nesosilicate groups
- zircon group
- aluminum silicate
- humite
- phenakite
- garnet
- olivine
zircon group
- zircon
- thorite
- hafnon
zircon
tetragonal, ZrSiO4
thorite
tetragonal, (Th,U)SiO4
hafnon
tetragonal, (Hf,Zr)SiO4
aluminum silicate group
- andalusite
- sillimanite
- kyanite
- topaz
- staurolite
andalusite
orthorhombic, Al2SiO5
sillimanite
orthorhombic, Al2SiO5
kyanite
triclinic, Al2SiO5
topaz
orthorhombic, Al2SiO4(F,OH)2
staurolite
monoclinic, Fe2Al9O6 (SiO4)4(O,OH)2
humite group
- humite
- chondrodite
- datolite
- titanite
- chloritoid
humite
orthorhombic, Mg5(SiO4)2(F,OH)2
chondrodite
monoclinic, Mg7(SiO4)3 (Fe,OH)2
datolite
monoclinic,CaB(SiO4)(OH)
titanite
monoclinic, CaTiO(SiO4)
chloritoid
monoclinic, (Fe,Mg)2Al4O2(SiO4)2(OH)4
garnet group
pyralspite
1. pyrope
2. almandine
3. spessartine
ugrandites
1. uvarovite
2. grossular
3. andradite
pyrope
isometric, Mg3Al2(SiO4)3
almandine
isometric, Fe3Al2(SiO4)3
spessartine
isometric, MnAl2(SiO4)3
Uvarovite
isometric, Ca3Cr2(SiO4)3
grossular
isometric, Ca3Al2(SiO4)3
andradite
isometric, Ca3Fe2(SiO4)3
phenakite group
- phenakite
- willemite
- troostite
phenakite
hexagonal, Be2SiO4
willemite
hexagonal, Zn2SiO4
troostite
hexagonal, Mn2SiO4
olivine group
- forsterite
- fayalite
- tephroite
- monticellite
forsterite
orthorhombic, Mg2SiO4
fayalite
orthorhombic, Fe2SiO4
tephroite
orthorhombic, Mn2SiO4
monticellite
orthorhombic, CaMgSiO4