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A member of the Crichtonite Group.
Classification of Mathiasite
|Strunz 8th edition ID:||4/C.09-20|
|Nickel-Strunz 10th (pending) edition ID:||4.CC.40|
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
C : Metal: Oxygen = 2: 3,3: 5, and similar
C : With large and medium-sized cations
|Dana 8th edition ID:||18.104.22.168|
8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
5 : AB21O38
|Hey's CIM Ref.:||7.14.6|
7 : Oxides and Hydroxides
14 : Oxides of Cr
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Type Occurrence of Mathiasite
|Co-type Localities:||Jagersfontein Mine, Jagersfontein, Xhariep District, Free State Province, South Africa|
Bultfontein Mine, Kimberley, Northern Cape Province, South Africa
Kolonkwanen kimberlite prospect, Mackenzie's Post District, Northern Cape Province, South Africa
|Year of Discovery:||1983|
Physical Properties of Mathiasite
Crystallography of Mathiasite
|Cell Parameters:||a = 10.35Å, c = 20.58Å|
|Ratio:||a:c = 1 : 1.988|
|Unit Cell Volume:||V 1,909.22 Å³ (Calculated from Unit Cell)|
Chemical Properties of Mathiasite
|Essential elements:||K, O, Ti|
|All elements listed in formula:||Cr, Fe, K, Mg, O, Ti, Zr|
Relationship of Mathiasite to other Species
|Member of:||Crichtonite Group|
|Other Members of Group:|
|Related Minerals - Nickel-Strunz Grouping):|
|Related Minerals - Hey's Index Grouping:|
Other Names for Mathiasite
|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 Mathiasite
American Mineralogist (1983): 68: 494-505.
Contributions to Mineralogy and Petrology: 117: 164-174.
Internet Links for Mathiasite
Localities for Mathiasite
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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Locality Updated: Tresminas Mines, Tresminas, Vila Pouca de Aguiar, Vila Real District, PortugalFrom Rui Nunes, 12th Dec 2013 13:01:28