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Cheralite
A valid IMA mineral species - grandfathered
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About Cheralite
Chera
Formula:
CaTh(PO4)2
Colour:
Grayish brown to reddish brown (on rims), pale yellow, brownish green ("brabantite" material)
Lustre:
Vitreous
Hardness:
5
Specific Gravity:
4.72 - 5.02
Crystal System:
Monoclinic
Member of:
Name:
Named after Chera, an ancient kingdom in southern India, that includes the type locality.
Monazite Group. The CaTh(PO4)2-dominant member of the group. Formerly known as "brabantite".
Redefined by Linthout (2007).
Not to be confused with the discredited cheralite-(Ce) (= Ca-rich monazite-(Ce)).
Compare 'UM1979-07-PO:CaFeHREESiTh'; 'UM1979-08-PO:CCaFeHREESiTh', 'UM1979-10-PO:FeHREETh' and 'UM1980-04-PO:CaHREETh'.
Redefined by Linthout (2007).
Not to be confused with the discredited cheralite-(Ce) (= Ca-rich monazite-(Ce)).
Compare 'UM1979-07-PO:CaFeHREESiTh'; 'UM1979-08-PO:CCaFeHREESiTh', 'UM1979-10-PO:FeHREETh' and 'UM1980-04-PO:CaHREETh'.
Unique Identifiers
Mindat ID:
6865
Long-form identifier:
mindat:1:1:6865:5
Similar Names
| Cheralite-(Ce) | A discredited species name |
| Theralite | A rock subtype |
IMA Classification of Cheralite
Approved, 'Grandfathered' (first described prior to 1959)
IMA status notes:
Redefined by the IMA
IMA Formula:
CaTh4+(PO4)2
First published:
1953
Approval history:
Redefined IMA 05-F: The name cheralite is applied to the members dominated by CaTh(PO4)2 in the system 2(REEPO4) - CaTh(PO4)2 - 2(ThSiO4); the name brabantite is discredited. See Linthout (2007).
Classification of Cheralite
8.AD.50
8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
D : With only large cations
8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
D : With only large cations
38.4.3.5
38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
4 : AXO4
38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
4 : AXO4
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Cher | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
| Crl | The Canadian Mineralogist (2019) | The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). |
Mount Malosa, Zomba, Southern Region, Malawi