Chemistry:Monazite-(Ce)
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| Monazite-(Ce) | |
|---|---|
-Quartz-242332.jpg) 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 × 2.6 × 1.3 cm. | |
| General | |
| Category | Phosphate mineral |
| Formula (repeating unit) | CePO4 |
| Crystal system | Monoclinic |
| Crystal class | Prismatic: 2/m |
| Space group | P21/b |
| Unit cell | a = 6.7902, b = 7.0203, c = 6.4674 [Å]; β = 103.6° |
| Identification | |
| References | [1] |
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).[3] The group contains simple rare earth phosphate minerals with the general formula of AXO4, where A = Ce, La, Nd, or Sm (or, rarely, Bi), and X = P or, rarely, As. The A site may also bear Ca and Th.[4]
References
- ↑ Mindat, Monazite-(Ce), https://www.mindat.org/min-2751.html
- ↑ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine 85 (3): 291–320. doi:10.1180/mgm.2021.43. Bibcode: 2021MinM...85..291W.
- ↑ Mindat, Monazite-(Ce), https://www.mindat.org/min-2751.html
- ↑ Mindat, Monazite Group, https://www.mindat.org/min-29313.html
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