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Beta-Willemite

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About Beta-WillemiteHide

Formula:
Zn2SiO4
Name:
Named by Arthur Schleede and Arno Gruhl in 1923 for a supposed second structural (metastable) state of willemite, a claim that was many years in verification. Taylor (1962) suggested that the mineral beta-willemite has essentially the same structure as willemite, but does show some structural abnormalities which still have not been well-defined. Beta-willemite does show anomalous yellow, rather than green, fluorescence in ultraviolet light and the implication is that the difference in the ultraviolet luminescence is related to subtle, but consistent, structural differences.
A variety of Willemite

A variety willemite that occurs as crusts of small, barrel-shaped crystals lining cavities in fault gouge cavities or solution cavities in regular willemite-bearing ore at the Sterling Mine, Ogdensburg, NJ. A fluorescent response of golden-yellow to orange versus green is a distinguishing characteristic.


Chemical Properties of Beta-WillemiteHide

Formula:
Zn2SiO4

Common AssociatesHide

Associated Minerals Based on Photo Data:
Calcite4 photos of Beta-Willemite associated with Calcite on mindat.org.

Fluorescence of Beta-WillemiteHide

Golden-yellow (LW & SW UV).

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Beta-WillemiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Arthur Schleede and Arno Gruhl (1923) Über röntgenographische Beobachtungen an Luminescenzfähigen Zinksilikat, Deutsche Bunsen-Gesellschaft für Angewandte Physikalische Chemie; journal later incorporated as Zeitschrift für Elektrochemie und angewandte physikalische Chemie, v. 29, p. 41-412.
Taylor, H. F. W. (1962) The Dehydration of Hemimorphite, American Mineralogist, v. 47, p. 932-944.

Internet Links for Beta-WillemiteHide

Localities for Beta-WillemiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
USA
 
  • New Jersey
    • Sussex Co.
      • Franklin Mining District
        • Ogdensburg
          • Sterling Hill
Warren Miller
Mineral and/or Locality  
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