Search Mineralpedia – A Mineral Photo Database and Identification Guide
Named as the calcium analogue of burbankite where calcium is replacing barium in the usual composition. The type locality is at the Poudrette quarry at Mont Saint- Hilaire in Quebec, Canada, and newer additional localities include in Mongolia at the Lugeengol REE deposit and in Russia in the Kola Peninsula and in the Aldan Shield in Siberia. It occurs at the type locality as a late-stage mineral associated with the Mont Saint-Hilaire complex.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/calcioburbankite.pdf
Named in reference to the calcium (calci) and iron (Latin: ferrum) in the composition of the mineral. Calcioferrite is a rare mineral that can be found in localities in Germany, the Cape Verde Islands off the West coast of Africa, Australia, and Kazakhstan among only a few others. It occurs in nodules in clay and in phosphatic clay. Associated minerals include montgoneryite, jarosite, cacoxenite, tinticite, apatite, and pyrite.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/calcioferrite.pdf
Named for an important industrial use of the mineral after the Latin word calx, or calce, for “lime.” Calcite is extremely common and widespread, and it is an important rock forming mineral and is common in limestone, marble, chalk, as a cement, hydrothermal veins, igneous rocks, and caves. Calcite is highly variable in color and forms, but it is most easily recognized by its reactivity to hydrochloric acid and even weaker acids like vinegar, which it will effervesce strongly when in contact with. Calcite can fluoresce red, blue, yellow, and many other colors and shades under both long-wave and short-wave ultraviolet light. It is also phosphorescent, cathodoluminescent, thermoluminescent and occasionally triboluminescent. Another telling property of Calcite is its strong optical birefringence which causes a double refraction, and thus double image, which can be viewed by looking at objects through a clear calcite specimen.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/calcite.pdf