Willemite [ Zn2SiO4 ]

Images of Willemite

Material properties

Formulas (Zn,Mn)2SiO4, Zn2SiO4
Abbreviation Wlm
Variant troostite
Classifications Minerals containing SiO4, Phenakite (group)
Luminescence emitters Mn, Pb
Spectra Luminescence (3), Reflectance (1)
IMA Status Grandfathered (pre-IMA), 1830
Search other databases webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Crystal symmetry Trigonal, Point group 3, Space group R3 (#148)
Tags Mineral, Variety, Silicate

Composition

Element Atoms
Si 1
Zn 2
O 4
Total: 7

Specimens of Willemite

Name Owner Materials Phase purity Image Spectra Techniques
M1098 Willemite CSIRO Willemite (100.0%) 100.0 1 Reflectance
Calcite-Fluorite-Willemite (#4, Arizona) Hamblen, Prof James O., Georgia Tech Calcite, Fluorite, Willemite 0
Calcite-Willemite-Franklinite (#12, Franklin, NJ) Hamblen, Prof James O., Georgia Tech Calcite, Franklinite, Willemite 0
Calcite-Willemite-Franklinite (#8, Franklin, NJ) Hamblen, Prof James O., Georgia Tech Calcite, Franklinite, Willemite 0
Clinohedrite-Hardystonite-Willemite (Franklin, NJ) Hamblen, Prof James O., Georgia Tech Clinohedrite, Hardystonite, Willemite 0
Esperite-Calcite-Willemite (#2, Franklin, NJ) Hamblen, Prof James O., Georgia Tech Calcite, Esperite, Willemite 0
Sphalerite (#1, Ogdensburg, NJ) Hamblen, Prof James O., Georgia Tech Franklinite, Sphalerite, Willemite 0
Willemite-Calcite-Franklinite Hamblen, Prof James O., Georgia Tech Calcite, Franklinite, Willemite 0