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Frankdicksonite

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About FrankdicksoniteHide

Formula:
BaF2
Colour:
Colourless
Lustre:
Vitreous
Hardness:
3
Specific Gravity:
4.89
Crystal System:
Isometric
Member of:
Name:
For mineralogist Frank W. Dickson (1922-), Professor of Geochemistry, Stanford University.
The solubility is much higher than that of fluorite (CaF2).


Classification of FrankdicksoniteHide

Approved
Approval Year:
1974
3.AB.25

3 : HALIDES
A : Simple halides, without H2O
B : M:X = 1:2
8.4.16

8 : Halides - Fluorides, Chlorides, Bromides and Iodides; also Fluoborates and Fluosilicates
4 : Halides of the alkaline earths and Mg

Physical Properties of FrankdicksoniteHide

Vitreous
Transparency:
Transparent
Colour:
Colourless
Streak:
White
Hardness:
Hardness:
VHN100=90 kg/mm2 - Vickers
Cleavage:
Perfect
{111}
Density:
4.89 g/cm3 (Measured)    4.885 g/cm3 (Calculated)

Optical Data of FrankdicksoniteHide

Type:
Isotropic
RI values:
n = 1.475(1)
Birefringence:
Isotropic minerals have no birefringence
Surface Relief:
Moderate

Chemical Properties of FrankdicksoniteHide

Formula:
BaF2

Crystallography of FrankdicksoniteHide

Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Fm3m
Setting:
Fm3m
Cell Parameters:
a = 6.1964(2) Å
Unit Cell V:
237.91 ų (Calculated from Unit Cell)
Z:
4

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0011682FrankdicksoniteWyckoff R W G (1963) Second edition. Interscience Publishers, New York, New York Fluorite structure Crystal Structures 1 239-44419630293
CIF Raw Data - click here to close

Type Occurrence of FrankdicksoniteHide

General Appearance of Type Material:
small discrete euhedral crystals ranging from 0.1 mm to 4 mm in diameter
Geological Setting of Type Material:
quartz vein
Associated Minerals at Type Locality:

Synonyms of FrankdicksoniteHide

Other Language Names for FrankdicksoniteHide

Relationship of Frankdicksonite to other SpeciesHide

Member of:
Other Members of this group:
FluoriteCaF2Iso. m3m (4/m 3 2/m) : Fm3m
FluorocronitePbF2Iso. m3m (4/m 3 2/m) : Fm3m
StrontiofluoriteSrF2Iso. m3m (4/m 3 2/m) : Fm3m

Related Minerals - Nickel-Strunz GroupingHide

3.AB.FluorocronitePbF2Iso. m3m (4/m 3 2/m) : Fm3m
3.AB.05TolbachiteCuCl2Mon.
3.AB.10CocciniteHgI2Tet.
3.AB.15SellaiteMgF2Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
3.AB.20ChloromagnesiteMgCl2Hex.
3.AB.20Lawrencite(Fe2+,Ni)Cl2Trig. 3m (3 2/m) : R3m
3.AB.20ScacchiteMnCl2Trig. 3m (3 2/m) : R3m
3.AB.25FluoriteCaF2Iso. m3m (4/m 3 2/m) : Fm3m
3.AB.25StrontiofluoriteSrF2Iso. m3m (4/m 3 2/m) : Fm3m
3.AB.30Tveitite-(Y)(Y, Na)6Ca6Ca6F42Trig. 3 : R3
3.AB.35Gagarinite-(Y)NaCaYF6Hex. 6/m : P63/m
3.AB.35Gagarinite-(Ce)Na(REExCa1-x)(REEyCa1-y)F6Trig.
3.AB.35Polezhaevaite-(Ce)NaSrCeF6Hex. 6/m : P63/m

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

8.4.1SellaiteMgF2Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
8.4.2NeighboriteNaMgF3Orth. mmm (2/m 2/m 2/m)
8.4.3BischofiteMgCl2 · 6H2OMon. 2/m : B2/m
8.4.4KorshunovskiteMg2Cl(OH)3 · 4H2OTric.
8.4.5CarnalliteKMgCl3 · 6H2OOrth. mmm (2/m 2/m 2/m) : Pnna
8.4.6TachyhydriteCaMg2Cl6 · 12H2OTrig.
8.4.7FluoriteCaF2Iso. m3m (4/m 3 2/m) : Fm3m
8.4.8SinjariteCaCl2 · 2H2OTet.
8.4.9AntarcticiteCaCl2 · 6H2OTrig. 3 2 : P3 2 1
8.4.10ChlorocalciteKCaCl3Orth. mmm (2/m 2/m 2/m) : Pnma
8.4.11RorisiteCaFClTet.
8.4.12JarliteNa(Sr,Na)7MgAl6F32(OH,H2O)2Mon. 2/m
8.4.13CalcjarliteNa(Ca,Sr)3Al3(OH)2F14Mon.
8.4.14TikhonenkoviteSr[AlF4(OH)(H2O)]Mon. 2/m : P21/b
8.4.15AcuminiteSr[AlF4(OH)(H2O)]Mon. 2/m : B2/b
8.4.17UsoviteBa2CaMgAl2F14Mon.
8.4.18BøgvaditeNa2SrBa2Al4F20Mon. 2/m

Other InformationHide

Notes:
Electron bombardment of the mineral results in a strong medium-blue cathodoluminescence.
Health Risks:
This chemical is considered hazardous by the 2012 OSHA Hazard Communication Standard (29 CFR 1910.1200).
Acute oral toxicity - Category 3
Acute Inhalation Toxicity - Dusts and Mists Category 4

References for FrankdicksoniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Radtke, A.S., Brown, G.E. (1974) Frankdicksonite, BaF2, a new mineral from Nevada. American Mineralogist 59, 885-888.

Internet Links for FrankdicksoniteHide

Localities for FrankdicksoniteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Australia
 
  • Western Australia
    • Laverton Shire
      • Mount Weld Station
Dunkan, R.K. & Willett, G.C. 1990. Mount Weld carbonatite. Hughes, F. E. (Ed.). (1990). Geology of the mineral deposits of Australia and Papua New Guinea. Australasian Institute of Mining and Metallurgy. Melbourne, 591-597. Middlemost, E. (1990). Mineralogy and petrology of the rauhaugites of the Mt Weld carbonatite complex of Western Australia. Mineralogy and Petrology, 41(2-4), 145-161. Nelson, D. R., Chivas, A. R., Chappell, B. W., & McCulloch, M. T. (1988). Geochemical and isotopic systematics in carbonatites and implications for the evolution of ocean-island sources. Geochimica et Cosmochimica Acta, 52(1), 1-17.
Austria
 
  • Tyrol
    • Innsbruck-Land District
      • Navis
Kolitsch, U., Schachinger, T., Auer, C. (2019): 2113) Akatoreit(?), Albit, Ardennit-(As), Ardennit-(V), „Ardennit-(Si)“, Baryt, Brandtit(?) (oder unbenanntes Ca2Mn(AsO4)2?), Coelestin, Fluorapatit, Fluorcalcioroméit, Frankdicksonit(?), Friedelit, Ganophyllit(?), Hämatit, Hausmannit, Hollandit, Jacobsit, Klinochlor, Kutnohorit, Manganberzeliit, Manganiandrosit-(La)-Manganiakasakait-(La)-Mischkristalle, Muskovit, Opal(?), Pennantit, Piemontit(?), Pyrobelonit, Pyrophanit, Quarz, Rhodochrosit, Rhodonit, Sarkinit, Schallerit, Spessartin, Svabit, Tephroit, Tilasit und Tiragalloit vom Navisbach, Navistal, Nordtirol. Pp. 251-260 in Walter, F. et al. (2019): Neue Mineralfunde aus Österreich LXVIII. Carinthia II, 209./129., 237-362.
Russia
 
  • Krasnoyarsk Krai
    • Taymyrskiy Autonomous Okrug
      • Taimyr Peninsula
        • Putoran Plateau
          • Noril'sk
            • Talnakh Cu-Ni Deposit
Sergei Sluzhenikin analytical data
USA (TL)
 
  • Nevada
    • Eureka Co.
      • Lynn Mining District
        • Elko
Amer.Min.(1974) 59, 885-888; Min.Rec.:20:469.
 
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