Needles of Rutile within Quartz
Oxides
TiO2
Minas Gerais, Brazil
Size: Rutile needles 2cm long
Tourmaline inclusions with Quartz
Cyclosilicates
NaMg3Al6(BO3)3[Si6O18](OH)3(OH)
Brasilia, Brazil
Size: 15cm
Biotite inclusion within Quartz
Phyllosilicates
K(Fe,Mg)3AlSi3O10(F,OH)2
Size: 6cm (Quartz)
Almandine garnet within Muscovite
Nesosilicates
FeAl2(SiO4)3
North Carolina, USA
Size: 1cm (Garnet)
Goethite inclusions within Quartz
Hydroxides
FeO(OH)
Bahia, Brazil
Size: 10.5x5 cm