Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (9 online) Mindat Auctions

Microlite from
Varuträsk, Skellefteå, Västerbotten, Sweden

Description
Comments:subhedral crystals up to 20 mm. chemistry appr. (Ca,Na)2(Ta,Nb)2O6(OH,F). Also as metasomatic product, replacing columbite-tantalite. Metasomatic microlite has A-site deficiencies and low F in contrast to primary microlite.
Quality of samples:not specified / average specimens
Rarity at site:Rare
Confirmation
Validity:Believed Valid
References
References:Cerny et al. (2004) Can. Min. 89, 505-518
Data
Mineral Data:Click here to view Microlite data
Locality Data:Click here to view Varuträsk, Skellefteå, Västerbotten, Sweden
Mineral and/or Locality
Google
 
www.mindat.org Web
Copyright © Jolyon & Ida Ralph 1993-2008. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register.