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|System:||Monoclinic||Colour:||Dark amber-brown, ...|
|Name:||Named by Thomas Leonard Walker and Alfred Leonard Parsons in 1924 for its relation to symplesite.|
Classification of Ferrisymplesite
|IMA status:||Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"|
|Strunz 8th edition ID:||7/D.48-20|
|Nickel-Strunz 10th (pending) edition ID:||8.CE.40|
8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
E : With only medium-sized cations, RO4:H2O about 1:2.5
|Dana 8th edition ID:||220.127.116.11|
42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
10 : A3(XO4)2Zq·xH2O
|Hey's CIM Ref.:||20.9.4|
20 : Arsenates (also arsenates with phosphate, but without other anions)
9 : Arsenates of Fe
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Type Occurrence of Ferrisymplesite
|Type Locality:||Hudson Bay Mine, Coleman Township, Cobalt area, Cobalt-Gowganda region, Timiskaming District, Ontario, Canada|
|Year of Discovery:||1924|
|Associated Minerals at type locality:|
Physical Properties of Ferrisymplesite
|Colour:||Dark amber-brown, yellow-brown, yellow|
|Density (measured):||2.885 g/cm3|
|Comment:||Best measurement from a probable mixture|
Crystallography of Ferrisymplesite
|Morphology:||Small irregular masses with a fibrous structure.|
|Comment:||Space group unknown|
|X-Ray Powder Diffraction:|
|Comments:||From Neublach, Germany specimen, see also ICDD 1-119 (synthetic)|
Optical Data of Ferrisymplesite
|RI values:||n = 1.650|
|Maximum Birefringence:||δ = 0.000|
Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
|Optical Extinction:||Parallel to elongation|
Chemical Properties of Ferrisymplesite
|Essential elements:||As, Fe, H, O|
|All elements listed in formula:||As, Fe, H, O|
Relationship of Ferrisymplesite to other Species
|Member of:||Symplesite Group|
|Other Members of Group:|
|Related Minerals - Nickel-Strunz Grouping):|
|Related Minerals - Hey's Index Grouping:|
Other Names for Ferrisymplesite
|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 Ferrisymplesite
WALKER, T.L. & PARSONS, A.L. (1924): The arsenates of cobalt, nickel and iron observed in silver-bearing veins at Cobalt, Ontario. University of Toronto, Geology Series, Contributions to Canadian Mineralogy 17, 13-17. Bstracted in
American Mineralogist (1925): 10: 134.
Palache, C., Berman, H., & Frondel, C. (1951) The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana,Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 753.
Walenta, K. (1979) Die Sekudaermineralien der Erzgaenge von Neubulach im noerdlichen Schwarzwald. Aufschluss, 30, 213-252.
Internet Links for Ferrisymplesite
Localities for Ferrisymplesite
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: Attu, Pargas (Parainen), Southwestern Finland Region, FinlandFrom Ilkka Mikkola, 24th May 2013 06:15:27