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Fluoborite

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Formula:
Mg
 
3
(BO
 
3
)(F,OH)
 
3
System:HexagonalColour:Colourless, violet or ...
Lustre:SilkyHardness:
Name:Named in 1926 by Per Geijer allusion to its composition, containing both FLUOrine and BORon.
Isostructural with:Hydroxylborite

Classification of Fluoborite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:5/G.05-10
Nickel-Strunz 10th (pending) edition ID:6.AB.50

6 : BORATES
A : Monoborates
B : BO3, with additional anions; 1(D) + OH, etc.
Dana 8th edition ID:25.1.2.1

25 : ANHYDROUS BORATES CONTAINING HYDROXYL OR HALOGEN
1 : Monoborates
Hey's CIM Ref.:10.1.4

10 : Borates with other anions
1 : Borates with halide
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Type Occurrence of Fluoborite

Type Locality:Tall Mine, Kallmora, Norberg, Västmanland, Sweden
Year of Discovery:1926
Geological Setting of type material:Contact metasomatic magnetite deposit.
Associated Minerals at type locality:
LudwigiteChondrodite

Physical Properties of Fluoborite

Lustre:Silky
Diaphaneity (Transparency):Transparent, Translucent
Colour:Colourless, violet or white; colourless in transmitted light
Streak:White
Hardness (Mohs):
Cleavage:Poor/Indistinct
On [0001].

Crystallography of Fluoborite

Crystal System:Hexagonal
Cell Parameters:a = 8.8Å, c = 3.1Å
Ratio:a:c = 1 : 0.352
Unit Cell Volume:V 207.90 ų (Calculated from Unit Cell)
Morphology:Acicular hexagonal prisms without measurable terminal faces. Fan-shaped or stellate groups. Fluffy, felted aggregates; rice-like grains.

Optical Data of Fluoborite

Type:Uniaxial (-)
RI values: nω = 1.570 nε = 1.534
Maximum Birefringence:δ = 0.036

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Low

Chemical Properties of Fluoborite

Formula:
Mg
 
3
(BO
 
3
)(F,OH)
 
3
Simplified for copy/paste:Mg3(BO3)(F,OH)3
Essential elements:B, F, Mg, O
All elements listed in formula:B, F, H, Mg, O

Relationship of Fluoborite to other Species

Series:Forms a series with Hydroxylborite (see here)
Related Minerals - Nickel-Strunz Grouping):

- +
6.AB.05Hambergite
Be
 
2
(BO
 
3
)(OH)
6.AB.10Berborite
Be
 
2
(BO
 
3
)(OH,F) · H
 
2
O
6.AB.15Jeremejevite
Al
 
6
(BO
 
3
)
 
5
(F,OH)
 
3
6.AB.20Warwickite
(Mg,Fe
2+
 
)
 
3
Ti(BO
 
3
)
 
2
O
 
2
6.AB.20Yuanfuliite
Mg(Fe
3+
 
,Fe
2+
 
,Al,Ti,Mg)(BO
 
3
)O
6.AB.25Karlite
Mg
 
7
(BO
 
3
)
 
3
(OH,Cl)
 
5
6.AB.30Azoproite
(Mg,Fe
2+
 
)
 
2
(Fe
3+
 
,Ti,Mg)(BO
 
3
)O
 
2
6.AB.30Bonaccordite
Ni
 
2
Fe
3+
 
(BO
 
3
)O
 
2
6.AB.30Fredrikssonite
Mg
 
2
(Mn
3+
 
,Fe
3+
 
)(BO
 
3
)O
 
2
6.AB.30Ludwigite
Mg
 
2
Fe
3+
 
(BO
 
3
)O
 
2
6.AB.30Vonsenite
Fe
2+
2
Fe
3+
 
(BO
 
3
)O
 
2
6.AB.35Pinakiolite
(Mg,Mn
2+
 
)
 
2
Mn
3+
 
(BO
 
3
)O
 
2
6.AB.40Blatterite
(Mn
2+
 
,Mg)
 
2
(Mn
3+
 
,Sb
3+
 
,Fe
3+
 
)(BO
 
3
)O
 
2
6.AB.40Chestermanite
Mg
 
2
(Fe
3+
 
,Mn
3+
 
,Al,Sb
3+
 
)(BO
 
3
)O
 
2
6.AB.40Orthopinakiolite
(Mg,Mn
2+
 
)
 
2
Mn
3+
 
(BO
 
3
)O
 
2
6.AB.40Takéuchiite
(Mg,Mn
2+
 
)
 
2
(Mn
3+
 
,Fe
3+
 
)(BO
 
3
)O
 
2
6.AB.45Hulsite
(Fe
2+
 
,Mg)
 
2
(Fe
3+
 
,Sn)(BO
 
3
)O
 
2
6.AB.45Magnesiohulsite
(Mg,Fe
2+
 
)
 
2
(Fe
3+
 
,Sn,Mg)(BO
 
3
)O
 
2
6.AB.45Aluminomagnesiohulsite
(Mg,Fe
2+
 
)
 
2
(Al,Mg,Sn)(BO
 
3
)O
 
2
6.AB.50Hydroxylborite
Mg
 
3
(BO
 
3
)(OH)
 
3
6.AB.55Shabynite
Mg
 
5
(BO
 
3
)(OH)
 
5
(Cl,OH)
 
2
· 4H
 
2
O
6.AB.55Wightmanite
Mg
 
5
(BO
 
3
)O(OH)
 
5
· 2H
 
2
O
6.AB.60Gaudefroyite
Ca
 
4
Mn
3+
2-3
(BO
 
3
)
 
3
(CO
 
3
)(O,OH)
 
3
6.AB.65Sakhaite
Ca
 
12
Mg
 
4
(BO
 
3
)
 
7
(CO
 
3
)
 
4
(OH)
 
2
Cl
6.AB.70Harkerite
Ca
 
12
Mg
 
4
Al(BO
 
3
)
 
3
(SiO
 
4
)
 
4
(CO
 
3
)
 
5
· H
 
2
O
6.AB.75Pertsevite-(F)
Mg
 
2
(BO
 
3
)(F,OH)
6.AB.75Pertsevite-(OH)
Mg
 
2
(BO
 
3
)(OH)
6.AB.80Jacquesdietrichite
Cu
 
2
(H
 
2
BO
 
3
)(OH)
 
3
6.AB.85Painite
CaZrAl
 
9
(BO
 
3
)O
 
15
Related Minerals - Hey's Index Grouping:

- +
10.1.1Teepleite
Na
 
2
[B(OH)
 
4
]Cl
10.1.2Bandylite
Cu[B(OH)
 
4
]Cl
10.1.3Berborite
Be
 
2
(BO
 
3
)(OH,F) · H
 
2
O
10.1.5Boracite
Mg
 
3
(B
 
7
O
 
13
)Cl
10.1.6Karlite
Mg
 
7
(BO
 
3
)
 
3
(OH,Cl)
 
5
10.1.7Shabynite
Mg
 
5
(BO
 
3
)(OH)
 
5
(Cl,OH)
 
2
· 4H
 
2
O
10.1.8/9/10Hilgardite
Ca
 
2
B
 
5
O
 
9
Cl · H
 
2
O
10.1.11Solongoite
Ca
 
2
(H
 
3
B
 
3
O
 
7
)(OH)Cl
10.1.12Hydrochlorborite
Ca
 
4
B
 
8
O
 
15
Cl
 
2
· 21H
 
2
O
10.1.13Ekaterinite
Ca
 
2
(B
 
4
O
 
7
)(Cl,OH)
 
2
· 2H
 
2
O
10.1.14Volkovskite
KCa
 
4
[B
 
5
O
 
8
OH]
 
4
[B(OH)
 
3
]
 
2
Cl · 4H
 
2
O
10.1.15Chelkarite
CaMgB
 
2
O
 
4
(Cl,OH)
 
2
· 5H
 
2
O Or near, with Cl:OH = 3:1
10.1.16Johachidolite
CaAlB
 
3
O
 
7
10.1.17Satimolite
KNa
 
2
Al
 
4
[Cl|B
 
2
O
 
5
]
 
3
· 13H
 
2
O
10.1.18Chambersite
Mn
2+
3
(B
 
7
O
 
13
)Cl
10.1.19Congolite
(Fe
2+
 
,Mg)
 
3
(B
 
7
O
 
13
)Cl
10.1.20Ericaite
Fe
2+
3
(B
 
7
O
 
13
)Cl

Other Names for Fluoborite

Synonyms:
NoceranNocerinNocerinaNocerite
Other Languages:
German:Fluoborit
Nocerit
Russian:Флюоборит
Simplified Chinese:氟硼镁石
Spanish:Fluoborita
Nocerita
Traditional Chinese:氟硼鎂石

Other Information

Fluorescence in UV light:White (SW UV)(Franklin Marble, NJ & NY, USA).
Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Fluoborite

Reference List:

- +
Geijer (1926) Geologiska Föeningens I Stockholm. Förhandlinger, Stockholm: 48: 84.

Geijer (1927) Sver. Geol. Undersök, Ser. C, no. 343, Yearbook 20, no. 4: 26.

American Mineralogist (1927): 12: 266.

Bauer and Berman (1929) American Mineralogist: 14: 165.

Scherillo A. (1938) - Ricerche sulla struttura cristallina della nocerite(=Fluoborite). Periodico di Mineralogia – Roma pp. 229- 248.

Watanabe (1939) Mineralogische und petrographische Mitteilungen, Vienna: 50: 441.

Johnston and Tilley (1940) Geological Magazne (Monthly Journal of Geology): 77: 141.

Schaller (1942) American Mineralogist: 27: 467.

Takéuchi (1950) Acta Crystallographica: 3: 208-210.

Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged: 369-370.

Flamini A. (1966) - Sulla composizione chimica della nocerite. Periodico di Mineralogia – Roma pp. 205-222.

Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).

Rudnev, V.V., Chukanov, N.V., Nechelyustov, G.N., Yamnova, N.A. (2007): Hydroxylborite, Mg3(BO3)(OH)3, a new mineral, and the isomorphous fluoborite-hydroxylborite series. Proceedings of the Russian Mineralogical Society, 136(1), 69-82.

Internet Links for Fluoborite

Search Engines:
  • Look for Fluoborite on Google
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  • External Links:
  • Look for Fluoborite on Webmineral
  • Look for Fluoborite on Athena Mineralogy
  • Look for Fluoborite on Wikipedia
  • Look for Fluoborite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Fluoborite details from Handbook of Mineralogy (PDF)
  • Mineral Dealers:
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  • Localities for Fluoborite

    The 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.
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Australia
     
    • Tasmania
      • Waratah district
        • Waratah
    Bottrill
      • Zeehan district
        • Mt Heemskirk mineral field
    Kwak, T.A.P., and Nicholson, M. (1988): Mineralogical Magazine 52, 713-716.
    Canada
     
    • Ontario
      • Haliburton Co.
        • Cardiff Township
    Sabina, A. P. (1982): Some rare minerals of the Bancroft area. Mineralogical Record 13, 223-228
      • Peterborough Co.
        • Galway Township
    Ref.: Geological Survey of Canada Miscellaneous Survey 39.
    China
     
    • Guangdong Province
      • Heyuan Prefecture
        • Lianping Co.
    Wang, S. (1983): Bull. lnst. Min. Deposits, Chinese Acad. Geol. Sci. 9, 72; Daqiu Huang and Zhangqi Peng (1985), In: Collected Papers of the Yichang Institute of Geology and Mineral Resources, Geological Society of China Publications, Vol. 9
      • Qingyuan Prefecture
        • Yangshan Co.
    Zhenhai Wang (2000): Guangdong Geology 15(2), 9-18
    • Hunan Province
      • Chenzhou Prefecture
        • Linwu Co.
          • Xianghualing Sn-polymetallic ore field
    Aleksandrov, S.M. (1998): Geochemistry of skarn and ore formation in dolomites. VSP (Utrecht, Tokyo), 300 pp.
        • Yizhang Co.
          • Dongpo ore field
    Gu Xiongfei, Ding Kuishou, and Xu Yingnian (1976): Geochimica 1976(2), 107.
      • Hengyang Prefecture
        • Changning Co.
          • Dayishan Sn-polymetallic ore field
    Rongwen Zhou and Zhishun Chen (1991): Geology and Prospecting 27(3), 29-31
    Yang Guangming, Peng Zhizhong, and Pan Zhaolu (1985): Acta Mineralogica Sinica 5(2), 97-101; Guangming Yang, Zhaolu Pan, and Zhizhong Peng (1987): Acta Petrologica et Mineralogica 6(3), 229-236
    • Yunnan Province
      • Baoshan Prefecture
        • Tengchong Co.
          • Tengchong Sn belt
            • Diantan
    Feibao Wu and Zongyu Li (1986): Geology and Prospecting 22(8), 20-26
      • Honghe Autonomous Prefecture
        • Gejiu Co.
          • Gejiu Sn-polymetallic ore field
    Chengdian Pen (1986): Mineral Deposits 5(3), 37-48
    France
     
    • Languedoc-Roussillon
      • Pyrénées-Orientales
        • Prats de Mollo-La Preste (Prats de Molló-La Presta)
    Goujou J-C., Guitard G., Berbain C. (2000), Le massif de Costabonne, 2464 m (Pyrénées-Orientales), Le Règne Minéral, n°32, pp: 5-12
    Germany
     
    • Saxony
      • Erzgebirge
        • Schwarzenberg District
          • Pöhla
    EDX-Analysis performed by Andreas Massanek/TU Freiberg.
    Italy
     
    • Campania
      • Naples Province
        • Somma-Vesuvius Complex
          • Monte Somma
            • Ercolano
              • San Vito
    P.M. Kartashov data
      • Phlegrean Volcanic Complex
        • Salerno Province
          • Nocera
            • Lavorate
    Flamini, A. (1966): Sulla composizione chimica della nocerite. Periodico di Mineralogia, 35, 205-222
    • Latium
      • Rome Province
    Caponera I., Fiori S., Pucci R., 2003. Fluoborite, piombo nativo, richterite ed altri interessanti ritrovamenti nei Colli Albani. Il Cercapietre, 1-2.
    luigi mattei
    Malaysia
     
    • Perak
      • Selibin
    Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 370.
    Mexico
     
    • Chihuahua
      • Mun. de Aquiles Serdán
        • Santa Eulalia District
          • East Camp
    Panczner (1987): 77-395.
    North Korea
     
    • North Hwanghae Province
      • Suan-gun
    Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 323, 370, 376.
    Romania
     
    • Bihor Co.
      • Nucet
    Ş. Marincea: "Suanite in two boron-bearing magnesian skarns from Romania: data on a longtime ignored mineral species", Neues Jahrbuch für Mineralogie - Abhandlungen 182:183-192 (2006)
    Ş. Marincea: "Suanite in two boron-bearing magnesian skarns from Romania: data on a longtime ignored mineral species", Neues Jahrbuch für Mineralogie - Abhandlungen 182:183-192 (2006)
    Russia
     
    • Eastern-Siberian Region
      • Prebaikalia (Pribaikal'e)
        • Irkutskaya Oblast'
          • Lower Tunguska
            • Nepa River basin
    [AmMin 84:686]
          • Zheleznogorsk
    Mazurov, M.P., Grishina, S.N., Istomin, V.E., and Titov, A.T. (2007): Geology of Ore Deposits 49(4), 271-284.
      • Sakha Republic (Saha Republic; Yakutia)
    [World of Stones 12:49]
        • Polar Yakutia
          • Dogdo River Basin
            • Tas-Khayakhtakh Range
    Seltmann, R., Soloviev, S., Shatov, V., Pirajno, F., Naumov, E., & Cherkasov, S. (2010). Metallogeny of Siberia: tectonic, geologic and metallogenic settings of selected significant deposits*. Australian Journal of Earth Sciences, 57(6), 655-706
      • Transbaikalia (Zabaykalye)
        • Buriatia Republic (Buryatia)
          • Vitim Plateau
    American Mineralogist, Volume 87, pages 1509–1513, 2002
    • Northern Region
      • Karelia Republic
        • Ladoga Region
    Ivashchenko, V. I., Valkama, M., Sundblad, K., Golubev, A. I., & Alekseev, V. Y. (2011, September). New data on mineralogy and metallogeny of scarns in the Pitkyaranta ore region. In Doklady Earth Sciences (Vol. 440, No. 1, pp. 1307-1311). SP MAIK Nauka/Interperiodica; Aleksandrov, S. M., & Troneva, M. A. (2009). Composition and genesis of endogenous borates from the Pitkáranta ore field, Karelia. Geochemistry International, 47(9), 914-929.
    Malinko S.V. e.a. (1991) Minerals of boron, - Moscow, Nedra, p. 135 (in Russian)
    South Africa
     
    • Limpopo Province
      • Phalaborwa
        • Loolekop
    Cairncross, B. and Dixon, R., (1995) Minerals of South Africa. The Geological Society of South Africa: 206.
    Sweden
     
    • Dalarna
      • Hedemora
    • Värmland
      • Filipstad
    • Västmanland
      • Norberg
        • Kallmora
    Geologiska Föeningens I Stockholm. Förhandlinger, Stockholm, 48, 84-85; Mineralogical Record (1975): 6: 174; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 369.
    UK
     
    • Scotland
      • North West Highlands (Inverness-shire)
        • Isle of Skye
          • Broadford
            • Kilchrist
            • Torrin
    A. Livingstone: Minerals of Scotland, NMS Publications (2002)
    USA
     
    • Alaska
      • Nome Borough
        • Seward Peninsula
    Aleksandrov, S.M. (2007): Endogeneous transformation of kotoite in calciphyres at magnesian-skarn deposits of boron. Geochem. Internat., 45, 666-684.
    • California
      • Fresno Co.
        • Lakeshore
    Canadian Minelalogist Vol.26, pp. 911-916 (1988)
      • Riverside Co.
        • Crestmore
          • Crestmore quarries
            • Sky Blue Hill
    Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 186; Segnit, Ralph E. & C.J. Lancucki (1963), Fluoborite from Crestmore, California: American Mineralogist: 48: 278-282; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 237.
      • San Bernardino Co.
        • Bristol Mts
          • Amboy
    Chesterman, C.W. & O.E. Bowen, Jr. (1958), Fluoborite from San Bernardino County, California (abstract): Geological Society of America Bulletin: 69: 1678-1679; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 186, 379.; Flamini, A. (1968) La fluoborite di Hope, San Bernardino County, California. Periodico di Mineralgia: 37: 129; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 516.; Otton, James K.; Glanzman, Richard K.; Brenner-Tourtelot, Elizabeth F. (1980) Uranium, rare-earth and thorium mineralization at the Hope Mine, eastern Bristol Mountains, San Bernardino County, California. USGS Open file report 80-821.
    No reference listed
    • Nevada
      • Lincoln Co.
        • Bristol and Jackrabbit Districts
    NBMG Spec. Pub. 31 Minerals of Nevada
    Rocks & Minerals, Nov. 1999
    • New Jersey
      • Sussex Co.
        • Franklin Mining District
          • Franklin
            • Franklin Marble
    Betancourt, P.P. (The Picking Table, Vol. 27(2):2-10; Dunn(1995):Pt5:641.
          • Ogdensburg
            • Sterling Hill
    Palache, C. (1935): 128; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 369; Dunn, Pete J. (1995): Franklin and Sterling Hill New Jersey: the world’s most magnificent mineral deposits, part: 5: 641.
        • Hardyston Township
          • Rudeville
    Common knowledge among local collectors.
        • Sparta Township
    Dunn(1995):Pt5:641
    • New York
      • Orange Co.
        • Town of Warwick
          • Amity
    George Robinson & Steven Chamberlain (2007) Gazetteer of major New York State mineral localities. Rocks & Minerals, 82, #6, 472-483.
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