Search Mineralpedia – A Mineral Photo Database and Identification Guide

Named as a member of the bastnasite species which are in turn named for the original locality at the Bastnas mines in Vastmanland, Sweden and for the dominance of lanthanum over the other rare earth elements in the composition. Basnasite-La is a rare mineral that occurs in late ankerite carbonatites at its type locality in the Belaya Zima REE-Nb deposit in Russia. Additional localities include in Pakistan, Madagascar, Malawi, Nigeria, South Africa, South Korea, Australia, the United States, Germany, Greece, and Sweden.

Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/bastnasite-(La).pdf

Named as a member of the bastnasite species which are in turn named for the original locality at the Bastnas mines in Vastmanland, Sweden and for the dominance of yttrium over the other rare earth elements in the composition. Basnasite-Y is a rare mineral that occurs as a secondary mineral in a microcline-quartz pegmatite vein at the type locality in the Verkhnee Espe Massif in Kazakhstan. Additional localities include in South Korea, Germany, China, and Tajikistan.

Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/bastnasite-(Y).pdf

Named for the chemical symbol for the barium (Ba), titanium (Ti), and silicon (Si) in the composition. Batisite is a rare mineral that can be found in Russia, Germany, Canada, and Australia only. It occurs at the type locality in the Inagli Massif in Russia “in aegirine-arfvedsonite-microcline pegmatites in dunites.” Some samples of Batisite are piezoelectric and will generate a charge in response to pressure changes.

Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/batisite.pdf

Named for the type locality at Baveno in the Seula mine in Piedmont, Italy. Bavenite is an uncommon mineral that occurs “as druses in miarolitic cavities in granite and associated pegmatites, formed by the alteration of beryl and other beryllium-bearing minerals, [and] also in hydrothermal veins and skarn.” Localities include in, additionally, the Czech Republic, Norway, Switzerland, the United States, Australia, Kazakhstan, Russia, and a number of others. Bavenite is weakly piezoelectric and generates a charge in response to pressure.

Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/bavenite.pdf