Yttrocerite

Formula: CaF2 + (Y,Ce)F3Mohs scale hardness: 4-5Specific gravity: 3–4 g/cm3Rare earth elements: Y, CeRare earth content, %: Ce 8.5–11.5; Y 14.3–37.7Other constituents, %: Ca 19.7–32.7 F 37.7–41.6Yttrocerite is a variety of the mineral fluorite. It is bluish red with isometric crystals and is named for the yttrium and cerium it contains. It has been found in Sweden, several states in the United States and Norway. It is not a mineral species approved by International Mineralogical Association.

  1. Referenceshttps://en.wikipedia.org

  2. https://books.google.cl/books?id=jPskAQAAIAAJ&pg=RA4-PA13&lpg=RA4-PA13&dq=Green+Cove+Springs+Mine+monazite&source=bl&ots=8xH_PV9MoG&sig=MkXPfqzQ6OM4zmU2OWc-eHL2-GQ&hl=ru&sa=X&ved=0ahUKEwj6-bG1mfbMAhUDE5AKHYGfCWsQ6AEIKDAD#v=onepage&q&f=false

  3. https://en.wikipedia.org/wiki/Yttrocerite

  4. http://webmineral.com/data/Yttrocerite.shtml#.V0fBgeQ8vYg

  5. http://www.mindat.org/min-7379.html

  6. http://www.johnbetts-fineminerals.com/jhbnyc/mineralmuseum/gallery.php?init=Yttrocerite

  7. http://www.mineralman.com/yttrocerite040310.html