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Hålsjöberg (Horrsjöberg), Torsby, Värmland, Sweden
|Lustre:||Sub-Vitreous, Resinous, Greasy||Hardness:||4 - 4½|
|Name:||Named after Peter John Wyllie (b. 1930), Professor of Geology, University of Chicago (1965-1983) and the California Institute of Technology (1984-). The original wyllieite from the Victory Pegmatite, Custer, South Dakota, USA (Moore and Ito, 1973) was redefined by Moore and Ito (1979) as ferrowyllieite-MnNaNa, but their new wyllieite, designated by them as wyllieite-□NaCa, was not formally described except for a published chemical analysis and the implicit assertion that their material otherwise conformed to the wyllieite group (Min Mag 43:227 (1979).|
Classification of Wyllieite
|IMA status:||Approved 1972|
|Strunz 8th edition ID:||7/A.06-40|
|Nickel-Strunz 10th (pending) edition ID:||8.AC.15|
8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
C : With medium-sized and large cations
|Dana 7th edition ID:||188.8.131.52|
|Dana 8th edition ID:||184.108.40.206|
38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
2 : (AB)5(XO4)3
|Hey's CIM Ref.:||19.14.4|
19 : Phosphates
14 : Phosphates of Fe and other metals
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Type Occurrence of Wyllieite
|Type Locality:||Old Mike mine (Great Northern; Old Mike M.S.2212), Custer, Custer District, Custer Co., South Dakota, USA|
|Year of Discovery:||1972|
Physical Properties of Wyllieite
|Lustre:||Sub-Vitreous, Resinous, Greasy|
|Hardness (Mohs):||4 - 4½|
Chemical Properties of Wyllieite
|Essential elements:||Al, Fe, Mn, Na, O, P|
|All elements listed in formula:||Al, Ca, Fe, Mg, Mn, Na, O, P|
Relationship of Wyllieite to other Species
|Series:||Forms a series with Ferrowyllieite (see here)|
Forms a series with Rosemaryite (see here)
|Member of:||Wyllieite Group|
|Other Members of Group:|
|Related Minerals - Nickel-Strunz Grouping):|
|Related Minerals - Hey's Index Grouping:|
|Related Minerals - Dana Grouping):|
Other Names for Wyllieite
|Health Warning:||No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.|
References for Wyllieite
Moore, Paul B., Ito, Jun. (1973): Wyllieite (Na2Fe2+2Al(PO4)3), a new species. Mineralogical Record: 4: 131-136.
American Mineralogist (1974): 59: 211, 280-290 (structure - ferrowylieite).
Mineralogical Magazine (1979): 43: 227-235.
American Mineralogist (1980): 65: 810-811.
Internet Links for Wyllieite
Localities for Wyllieite
The 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.
(TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
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New Locality Added: Chatelaunoux, Mazaye, Puy-de-Dôme, Auvergne, FranceFrom Frédéric Hède, 26th May 2013 06:55:41