Willemite [ Zn2SiO4 ]

Images of Willemite

Material properties

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

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