Monazite-(Ce)

Monazite-(Ce) is the most common representative of the monazite group. It is the cerium-dominant analogue of monazite-(La), monazite-(Nd), and monazite-(Sm). It is also the phosphorus analogue of gasparite-(Ce).[2] The group contains simple rare earth phosphate minerals with the general formula of ATO4, where A = Ce, La, Nd, or Sm (or, rarely, Bi), and B = P or, rarely, As. The A site may also bear Ca and Th. [3]

Monazite-(Ce)
Monazite-(Ce), Quartz.

Locality: Siglo Veinte Mine (Siglo XX Mine; Llallagua Mine; Catavi), Llallagua, Rafael Bustillo Province, Potosí Department, Bolivia (Locality at mindat.org).

Size: 3.5 x 2.6 x 1.3 cm.
General
CategoryPhosphate mineral
Formula
(repeating unit)
CePO4
Crystal systemMonoclinic
Crystal classPrismatic: 2/m
Space groupP21/b
Unit cella = 6.7902, b = 7.0203, c = 6.4674 [Å]; β = 103.6°
Identification
References[1]

References

  1. Mindat, Monazite-(Ce), https://www.mindat.org/min-2751.html
  2. Mindat, Monazite-(Ce), https://www.mindat.org/min-2751.html
  3. Mindat, Monazite Group, https://www.mindat.org/min-29313.html
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.