3D Images of Common Minerals
Put your 3D glasses on as you view the images below.
Silicates
Quartz: SiO2 , hardness = 7, conchoidal fracture, prismatic crystal form, variable color .
Orthoclase: Al , hardness = 6, two planes of cleavage perpendicular, tabular crystal form, salmon or aquamarine.
Albite: Al , hardness = 6, two planes of cleavage perpendicular, tabular crystal form, white or grey.
Biotite: K(Mg,Fe)2 AlSi3O10 (OH2), Hardness 2-3, 1 plane of cleavage, tabular crystal form, brown
Pyroxene: (Mg,Fe)2 Si2O6, Hardness 6-7, 2 Planes 90 degrees, Prismatic Crystal form, Black, Green
Olivine: (Fe, Mg)2SiO4, Hardness 6-7, fracture, green, granular
Other Common Minerals
Calcite: CaCO3, Hardness = 3, 3 planes of cleavage 60 and 180 degrees, rhombohedral crystal form, variable color
Fluorite: CaF , hardness = 4, four planes of cleavage tetrahedral, tetrahedral or cubic crystal form, purple of clear.
Halite: NaCl, Hardness 2-3, three places of clevage 90 degrees, cubic crystal form, variable color.
Pyrite: FeS2, Hardness 6-7, fracture, Pyrtiohedron/cubic crystal form, gold
Gypsum: CaSO4 H2O, Hardness 2, 2 planes of cleavage 90 degrees, tabular crystal form, white, pink
Hematite: Fe2O3, Hardness-5-6, fracture, bladed or massive, grey, reddish-brown.