Halite mineral
(repeating unit)(La,Ce)F3 | Strunz classification | 03.AC.15 (03) |
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Dana classification | 09.03.04.02 (09) |
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Crystal system | Trigonal |
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Crystal class | Hexagonal scalenohedral |
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Space group | P3c1 (No. 165) |
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Unit cell | 328.80 ų (Calculated from Unit Cell) |
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Identification |
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Formula mass | 196.02 |
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Colour | Greenish-yellow |
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Crystal habit | Platy, tabular |
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Cleavage | Indistinct, Imperfect |
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Mohs scale hardness | 4-5 |
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Luster | Vitreous |
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Streak | White |
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Diaphaneity | Transparent to translucent |
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Density | 5.93 |
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Birefringence | 0.006 |
Fluocerite-(Ce) |
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General |
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Category | Mineral |
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Formula (repeating unit) | (La,Ce)F3 |
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Strunz classification | 3/A.10-20 |
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Dana classification | 9.3.4.1 |
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Crystal system | Trigonal |
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Crystal class | Hexagonal Scalenohedral |
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Unit cell | 320.86 ų (Calculated from Unit Cell) |
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Identification |
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Formula mass | 196.99 |
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Colour | Light yellow; darkening to yellow- and red-brown; colourless to pale pink (transmitted light) |
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Crystal habit | Massive, Primsatic |
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Cleavage | Distinct/Good |
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Fracture | Irregular/Uneven, Splintery, Sub-Conchoidal |
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Tenacity | Brittle |
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Mohs scale hardness | 4.5-5 |
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Luster | Vitreous, Resinous, Pearly |
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Streak | Yellow-white |
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Diaphaneity | Transparent to translucent |
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Specific gravity | 5.93 - 6.14 |
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Density | 5.93 - 6.14 g/cm3 (Measured) |
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Birefringence | 0.005 - 0.007 |
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Fluocerite, also known as tysonite, is a mineral consisting of cerium and lanthanum fluorides, with the chemical formula (Ce,La)F3.[1][2] The end members are classified as two different mineral types depending on the cation, fluocerite-(Ce) and fluocerite-(La), corresponding respectively to lanthanum trifluoride and cerium trifluoride. Both crystallize in the trigonal system.[3]
Fluocerite-(Ce) was first described (without the Ce) in 1845 from hydrothermal veins in granite in Sweden.[4] Fluocerite-(La) was first described in 1969 from the type locality in central Kazakhstan.[3] The name tysonite was given in 1880 to the same type of mineral found in Colorado.[5][6] Tysonite-type structure is used for rare-earth fluorides with the P3c1 space group structure.[7]
References
- ^ "Fluocerite-(La) Mineral Data". webmineral.com. Retrieved 2021-02-12.
- ^ "Fluocerite-(Ce) Mineral Data". webmineral.com. Retrieved 2021-02-12.
- ^ a b "Fluocerite-(La)". www.mindat.org. Retrieved 2021-02-12.
- ^ "Fluocerite-(Ce)". www.mindat.org. Retrieved 2021-02-12.
- ^ Geijer, Per (1921-01-01). "On Fluocerite and Tysonite". Geologiska Föreningen i Stockholm Förhandlingar. 43 (1–2): 19–23. doi:10.1080/11035892109443886. ISSN 0016-786X.
- ^ Allen, Oscar D., and W. J. Comstock. "Bastnaesite and tysonite from Colorado." American Journal of Science 3.113 (1880): 390-393.
- ^ Dudney, Nancy J.; West, William C.; Nanda, Jagjit (2015-07-09). Handbook Of Solid State Batteries (Second ed.). World Scientific. ISBN 978-981-4651-91-2.
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Salts and covalent derivatives of the fluoride ion |
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HF | | | | ?HeF2 | LiF | BeF2 | BF BF3 B2F4 +BO3 | CF4 CxFy +CO3 | NF3 FN3 N2F2 NF N2F4 NF2 ?NF5 | OF2 O2F2 OF O3F2 O4F2 ?OF4 | F2 | Ne | NaF | MgF2 | AlF AlF3 | SiF4 | P2F4 PF3 PF5 | S2F2 SF2 S2F4 SF3 SF4 S2F10 SF6 +SO4 | ClF ClF3 ClF5 | ?ArF2 ?ArF4 | KF | CaF CaF2 | | ScF3 | TiF2 TiF3 TiF4 | VF2 VF3 VF4 VF5 | CrF2 CrF3 CrF4 CrF5 ?CrF6 | MnF2 MnF3 MnF4 ?MnF5 | FeF2 FeF3 FeF4 | CoF2 CoF3 CoF4 | NiF2 NiF3 NiF4 | CuF CuF2 ?CuF3 | ZnF2 | GaF2 GaF3 | GeF2 GeF4 | AsF3 AsF5 | Se2F2 SeF4 SeF6 +SeO3 | BrF BrF3 BrF5 | KrF2 ?KrF4 ?KrF6 | RbF | SrF SrF2 | | YF3 | ZrF2 ZrF3 ZrF4 | NbF4 NbF5 | MoF4 MoF5 MoF6 | TcF4 TcF 5 TcF6 | RuF3 RuF 4 RuF5 RuF6 | RhF3 RhF4 RhF5 RhF6 | PdF2 Pd[PdF6] PdF4 ?PdF6 | Ag2F AgF AgF2 AgF3 | CdF2 | InF InF3 | SnF2 SnF4 | SbF3 SbF5 | TeF4 ?Te2F10 TeF6 +TeO3 | IF IF3 IF5 IF7 +IO3 | XeF2 XeF4 XeF6 ?XeF8 | CsF | BaF2 | | LuF3 | HfF4 | TaF5 | WF4 WF5 WF6 | ReF4 ReF5 ReF6 ReF7 | OsF4 OsF5 OsF6 ?OsF 7 ?OsF 8 | IrF2 IrF3 IrF4 IrF5 IrF6 | PtF2 Pt[PtF6] PtF4 PtF5 PtF6 | AuF AuF3 Au2F10 ?AuF6 AuF5•F2 | Hg2F2 HgF2 ?HgF4 | TlF TlF3 | PbF2 PbF4 | BiF3 BiF5 | ?PoF2 PoF4 PoF6 | AtF ?AtF3 ?AtF5 | RnF2 ?RnF 4 ?RnF 6 | FrF | RaF2 | | LrF3 | Rf | Db | Sg | Bh | Hs | Mt | Ds | Rg | Cn | Nh | Fl | Mc | Lv | Ts | Og | | ↓ | | | | LaF3 | CeF3 CeF4 | PrF3 PrF4 | NdF2 NdF3 NdF4 | PmF3 | SmF2 SmF3 | EuF2 EuF3 | GdF3 | TbF3 TbF4 | DyF2 DyF3 DyF4 | HoF3 | ErF3 | TmF2 TmF3 | YbF2 YbF3 | AcF3 | ThF3 ThF4 | PaF4 PaF5 | UF3 UF4 UF5 UF6 | NpF3 NpF4 NpF5 NpF6 | PuF3 PuF4 PuF5 PuF6 | AmF2 AmF3 AmF4 ?AmF6 | CmF3 CmF4 ?CmF6 | BkF3 BkF 4 | CfF3 CfF4 | EsF3 EsF4 ?EsF6 | Fm | Md | No | |
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PF6−, AsF6−, SbF6− compounds | - AgPF6
- KAsF6
- LiAsF6
- NaAsF6
- HPF6
- HSbF6
- NH4PF6
- LiSbF6
- KPF6
- KSbF6
- LiPF6
- NaPF6
- NaSbF6
- TlPF6
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AlF6− compounds | - (NH4)3[AlF6]
- Cs2AlF5
- Li3AlF6
- K3AlF6
- Na3AlF6
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chlorides, bromides, iodides and pseudohalogenides | |
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SiF62-, GeF62- compounds | - BaSiF6
- BaGeF6
- (NH4)2SiF6
- Na2[SiF6]
- K2[SiF6]
- Li2GeF6
- Li2SiF6
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Oxyfluorides | - BrOF3
- BrO2F
- BrO3F
- LaOF
- ThOF2
- VOF
3 - TcO
3F - WOF
4 - YOF
- ClOF3
- ClO2F3
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Organofluorides | - CBrF3
- CBr2F2
- CBr3F
- CClF3
- CCl2F2
- CCl3F
- CF2O
- CF3I
- CHF3
- CH2F2
- CH3F
- C2Cl3F3
- C2H3F
- C6H5F
- C7H5F3
- C15F33N
- C3H5F
- C6H11F
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with transition metal, lanthanide, actinide, ammonium | - VOF3
- CrOF4
- CrF2O2
- NH4F
- (NH4)3CrF6
- (NH4)3GaF6
- (NH4)2GeF6
- (NH4)3FeF6
- (NH4)3InF6
- NH4NbF6
- (NH4)2SnF6
- NH4TaF6
- (NH4)3VF6
- (NH4)2ZrF6
- CsXeF7
- Li2SnF6
- Li2TiF6
- LiWF6
- Li2ZrF6
- K2TiF6
- Rb2TiF6
- Na2TiF6
- Na2ZrF6
- K2NbF7
- K2TaF7
- K2ZrF6
- UO2F2
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nitric acids | |
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bifluorides | |
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thionyl, phosphoryl, and iodosyl | - F2OS
- F3OP
- PSF3
- IOF3
- IO3F
- IOF5
- IO2F
- IO2F3
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