Multiple oxide, members of the crichtonite group
Specific gravity: 4.42
Streak: Brownish black
Plutonic igneous environments
Davidite-(La) occurs as a primary mineral in high-temperature hydrothermal
veins; in norite and anorthosite; in
alkalic rocks and also granite pegmatites and carbonatites. Associated minerals include
epidote, albite and
At the Thackaringa District, Yancowinna county, New South Wales, Australia, a specimen has been found which is a small amount of davidite-(La) with a bit of anatase coating and large rutile crystals and some quartz with a bit of mica (AM 46.700-718).
At Crocker Well (Crocker's Well), Mt Victor Plumbago Station, Olary Province, South Australia, Australia, davidite-(La) has been found as a black, pitchy mass associated with albite (AM 46.700-718).
At the type locality, Radium Hill mine, Radium Hill area, Olary Province, South Australia, Australia, davidite-(La) was found in an intimate intergrowth with ilmenite and rutile and much black mica, with which were mixed minor amounts of chalcopyrite and carbonates (AM 46.700-718, AM 64.1010-1017).
Back to Minerals