Help mindat.org|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on Mindat
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralSearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
StatisticsThe ElementsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Bultfonteinite

This page is currently not sponsored. Click here to sponsor this page.
Formula:
Ca2(HSiO4)F · H2O
Colour:
colourless, pink
Hardness:
Crystal System:
Triclinic
Name:
THIS new mineral was first found by a miner named Cann in 1903
or 1904 on the 480-foot level of the Bultfontein mine at Kimberley. Named in 1932 by John Parry, Alpheus Fuller Williams, and Frederick Eugene Wright for the type locality at Bultfontein, Kimberly, Free State Province, South Africa.
This page provides mineralogical data about Bultfonteinite.


Hide all sections | Show all sections

Classification of BultfonteiniteHide

Approved, 'Grandfathered' (first described prior to 1959)
9.AG.80

9 : SILICATES (Germanates)
A : Nesosilicates
G : Nesosilicates with additional anions; cations in > [6] +- [6] coordination
52.4.7.2

52 : NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
4 : Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
17.1.16

17 : Silicates Containing other Anions
1 : Silicates with fluoride (not containing Al)

Physical Properties of BultfonteiniteHide

Colour:
colourless, pink
Streak:
white
Hardness:
4½ on Mohs scale
Cleavage:
Distinct/Good

Optical Data of BultfonteiniteHide

Type:
Biaxial (+)
RI values:
nα = 1.587 nβ = 1.590 nγ = 1.597
Max Birefringence:
δ = 0.010
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r > v

Chemical Properties of BultfonteiniteHide

Formula:
Ca2(HSiO4)F · H2O
IMA Formula:
Ca2[SiO3(OH)]F · H2O
Common Impurities:
B,Al,Na,P

Crystallography of BultfonteiniteHide

Crystal System:
Triclinic
Cell Parameters:
a = 10.99 Å, b = 8.18 Å, c = 5.67 Å
α = 93.95°, β = 91.32°, γ = 89.85°
Ratio:
a:b:c = 1.344 : 1 : 0.693
Unit Cell V:
508.38 ų (Calculated from Unit Cell)

Type Occurrence of BultfonteiniteHide

Other Language Names for BultfonteiniteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Olmiite105 photos of Bultfonteinite associated with Olmiite on mindat.org.
Calcite34 photos of Bultfonteinite associated with Calcite on mindat.org.
Hydroxyapophyllite-(K)23 photos of Bultfonteinite associated with Hydroxyapophyllite-(K) on mindat.org.
Oyelite17 photos of Bultfonteinite associated with Oyelite on mindat.org.
Poldervaartite10 photos of Bultfonteinite associated with Poldervaartite on mindat.org.
Manganite7 photos of Bultfonteinite associated with Manganite on mindat.org.
Ettringite5 photos of Bultfonteinite associated with Ettringite on mindat.org.
Quartz5 photos of Bultfonteinite associated with Quartz on mindat.org.
Celestine3 photos of Bultfonteinite associated with Celestine on mindat.org.
Hausmannite2 photos of Bultfonteinite associated with Hausmannite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

9.AG.05AbswurmbachiteCuMn3+6(SiO4)O8Tet. 4/mmm (4/m 2/m 2/m) : I41/acd
9.AG.05BrauniteMn2+Mn3+6(SiO4)O8Tet. 4/mmm (4/m 2/m 2/m) : I41/acd
9.AG.05NeltneriteCaMn3+6(SiO4)O8Tet. 4/mmm (4/m 2/m 2/m) : I41/acd
9.AG.05Braunite-IICaMn3+14(SiO4)O20Tet. 4/mmm (4/m 2/m 2/m) : I41/acd
9.AG.10LångbaniteMn2+4Mn3+9Sb5+O16(SiO4)2Trig. 3m : P3m1
9.AG.15MalayaiteCaSn(SiO4)OMon.
9.AG.15TitaniteCaTi(SiO4)OMon. 2/m : P21/b
9.AG.15VanadomalayaiteCaV4+(SiO4)OMon.
9.AG.15Natrotitanite(Na0.5Y0.5)Ti(SiO4)OMon. 2/m : B2/b
9.AG.15ŻabińskiiteCa[Al0.5(Ta,Nb)0.5)](SiO4)OTric. 1
9.AG.20Cerite-(Ce)(Ce,Ca)9(Mg,Fe)(SiO4)3(HSiO4)4(OH)3Trig. 3m : R3c
9.AG.20Cerite-(La)(La,Ce,Ca)9(Fe,Ca,Mg)(SiO4)3(HSiO4)4(OH)3Trig. 3m : R3c
9.AG.20Aluminocerite-(Ce)(Ce,La,Ca)9(Al,Fe3+)(SiO4)3(HSiO4)4(OH)3Trig. 3m : R3c
9.AG.25Trimounsite-(Y)Y2Ti2(SiO4)O5Mon.
9.AG.25Yftisite-(Y)(Y,Dy,Er)4(Ti,Sn)(SiO4)2O(F,OH)6
9.AG.25Mieite-(Y)Y4Ti(SiO4)2O[F,(OH)]6Orth. mmm (2/m 2/m 2/m) : Cmcm
9.AG.30SitinakiteKNa2Ti4(SiO4)2O5(OH) · 4H2OTet.
9.AG.35KittatinnyiteCa2Mn2Mn(SiO4)2(OH)4 · 9H2OHex.
9.AG.40aNatisiteNa2Ti(SiO4)OTet.
9.AG.40bParanatisiteNa2Ti(SiO4)OOrth.
9.AG.45Törnebohmite-(Ce)(Ce,La)2Al(SiO4)2(OH)
9.AG.45Törnebohmite-(La)(La,Ce)2Al(SiO4)2(OH)
9.AG.50Kuliokite-(Y)Y4Al(SiO4)2(OH)2F5
9.AG.55ChantaliteCaAl2(SiO4)(OH)4Tet. 4/m : I41/a
9.AG.60MozartiteCaMn3+(SiO4)(OH)Orth. 2 2 2 : P21 21 21
9.AG.60VuagnatiteCaAl(SiO4)(OH)Orth.
9.AG.65HatruriteCa3(SiO4)OTrig.
9.AG.70JasmunditeCa11(SiO4)4O2STet. 4 2m : I4m2
9.AG.75AfwilliteCa3(HSiO4)2 · 2H2OMon. m : Bb
9.AG.85ZoltaiiteBaV4+2V3+12(SiO4)2O19Trig. 3 : P3
9.AG.90Tranquillityite(Fe2+,Ca)8(Zr,Y)2Ti3(SiO4)3O12Hex.

Related Minerals - Dana Grouping (8th Ed.)Hide

52.4.7.1AfwilliteCa3(HSiO4)2 · 2H2OMon. m : Bb
52.4.7.3HatruriteCa3(SiO4)OTrig.
52.4.7.4JasmunditeCa11(SiO4)4O2STet. 4 2m : I4m2

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

17.1.1HectoriteNa0.3(Mg,Li)3(Si4O10)(F,OH)2Mon.
17.1.3AgrelliteNaCa2Si4O10FTric.
17.1.4Fluorapophyllite-(Na)NaCa4(Si8O20)F · 8H2OOrth.
17.1.5Fluorapophyllite-(K)KCa4(Si8O20)(F,OH) · 8H2OTet. 4/mmm (4/m 2/m 2/m) : P4/mnc
17.1.6Hydroxyapophyllite-(K)KCa4(Si8O20)(OH,F) · 8H2OTet.
17.1.7HsianghualiteCa3Li2(Be3Si3O12)F2
17.1.8LeucophaniteNaCaBeSi2O6FOrth. 2 2 2 : P21 21 21
17.1.9NorbergiteMg3(SiO4)(F,OH)2Orth. mmm (2/m 2/m 2/m)
17.1.10Chondrodite(Mg,Fe2+)5(SiO4)2(F,OH)2Mon. 2/m : P21/b
17.1.11Humite(Mg,Fe2+)7(SiO4)3(F,OH)2Orth. mmm (2/m 2/m 2/m)
17.1.12ClinohumiteMg9(SiO4)4F2Mon. 2/m : P21/b
17.1.13CanasiteK3Na3Ca5Si12O30(OH)4
17.1.14Charoite(K,Sr)15-16(Ca,Na)32[Si6O11(O,OH)6]2[Si12O18(O,OH)12]2[Si17O25(O,OH)18]2(OH,F)4 · ~3H2OMon. 2/m : P21/m
17.1.15CuspidineCa4(Si2O7)(F,OH)2Mon. 2/m : P21/b
17.1.17ZeophylliteCa13Si10O28(OH)2F8 · 6H2OTrig. 3 : R3
17.1.18Rowlandite-(Y)(Y,Ce)4Fe2+(Si2O7)2F2 (?)Tric.
17.1.19YuksporiteK4(Ca,Na)14(Sr,Ba)2(◻,Mn,Fe)(Ti,Nb)4(O,OH)4(Si6O17)2(Si2O7)3(H2O,OH)3Orth.
17.1.20Yftisite-(Y)(Y,Dy,Er)4(Ti,Sn)(SiO4)2O(F,OH)6
17.1.21Mosandrite-(Ce)(Ca3REE)[(H2O)2Ca0.50.5]Ti(Si2O7)2(OH)2(H2O)2Mon. 2/m : P21/b
17.1.22Hiortdahlite(Na,Ca)2Ca4Zr(Mn,Ti,Fe)(Si2O7)2(F,O)4 Tric.
17.1.23BurpaliteNa2CaZr(Si2O7)F2Mon.
17.1.24SeidozeriteNa4MnZr2Ti(Si2O7)2O2F2Mon.
17.1.25Thorosteenstrupine(Ca,Th,Mn)3Si4O11F · 6H2O
17.1.26Zircophyllite(K,Na)3(Mn,Fe2+)7(Zr,Ti)2Si8O24(O,OH,F)7Tric.
17.1.27JinshajiangiteBaNaFe2+4Ti2(Si2O7)2O2(OH)2FMon. 2/m
17.1.28RosenbuschiteNa6Ca6Zr3Ti(Si2O7)4O2F6Tric. 1 : P1
17.1.29NarsarsukiteNa4(Ti,Fe)2[Si8O20](O,OH,F)2Tet.
17.1.30SonoliteMn2+9(SiO4)4(OH)2Mon.

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for BultfonteiniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Parry J, Williams A F, Wright F E (1932) On bultfonteinite, a new fluorine-bearing hydrous calcium silicate from South Africa, Mineralogical Magazine, 23, 145-162
American Mineralogist: 18: 32.
Megaw H D, Kelsey C H (1955) An accurate determination of the cell dimensions of bultfonteinite, Ca4Si2O10H6F2, Mineralogical Magazine, 30, 569-573
McIver, Edward J. (1963), The structure of bultfonteinite, Ca4Si3O10F2H6: Acta Crystallographica: 16: 551-558.
Biagioni C, Bonaccorsi E, Merlino S (2010) Crystal structure of bultfonteinite, Ca4[SiO3(OH)]2F2·2H2O, from N'chwaning II Mine (Kalahari Manganese Field, Republic of South Africa), Atti della Società Toscana di Scienze Naturali, Memorie, Serie A, 115, 9-15

Internet Links for BultfonteiniteHide

Localities for BultfonteiniteHide

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
 
  • Victoria
    • Rural City of Benalla
Aust.Jour. Earth Sci. 46:251 (1999)
Botswana
 
  • Central District
    • Orapa
Contributions to Mineralogy and Petrology Volume 160, Number 4, 533-55
Canada
 
  • Northwest Territories
Anton R. Chakhmouradian and Roger H. Mitchell (2001) Three compositional varieties of perovskite from kimberlites of the Lac de Gras Field (Northwest Territories, Canada). Mineralogical Magazine 65:133-148
Israel
 
  • Negev
Gross, S. (1977): The Mineralogy of the Hatrurim Formation, Israel. Geological Survey of Israel, Bulletin no. 70, 80 pp.
Japan
 
  • Honshu Island
    • Chugoku Region
      • Okayama Prefecture
        • Ihara City (Ibara City)
          • Higashi-Mihara
        • Takahashi City
          • Bicchu-cho (Bitchu-cho)
            • Fuka
Mineralogical Record: 27: 303.; Mineralogical Journal Vol. 14 (1989) , No. 7 pp 299-302; Henmi, C., & Kusachi, I. (1992). Clinotobermorite, Ca5Si6 (O, OH) 18· 5H2O, a new mineral from Fuka, Okayama Prefecture, Japan. Mineralogical Magazine, 56(3), 353-358.; KUSACHI, I., & HENMI, C. (1991). Sillenite from Fuka, Okayama prefecture, Japan. Mineralogical Journal, 15(8), 343-348.; Ando, T., Kanayama, A., Kobayashi, S., Miyawaki, R., Kishi, S., Tanabe, M., & Kusachi, I. (2015). Roweite from the Fuka mine, Okayama Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 110(1), 29-34.
    • Kinki region
      • Mie Prefecture
        • Ise City
Minakawa, T., Inaba, S., Noto, S. (1986) Oyelite from Suisho-dani, Ise, Mie Prefecture. Ganseki Koubutsu Koushou Gakkaishi, 81, 138-142
Jordan
 
  • Amman
    • Hashem region
Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols
Russia
 
  • Eastern-Siberian Region
    • Prebaikalia (Pribaikal'e)
      • Irkutskaya Oblast'
        • Lake Baikal area
Koneva A.A., Uschapovskaya Z.F. (1991) On harkerite and bultfonteinite from skarns of Tazheran alkaline massif, - Geologiya i Geofizika, 2, p.74-78.
  • Northern Caucasus Region
    • Kabardino-Balkarian Republic
      • Baksan Valley
Galuskin, E.V., Galuskina, I.O., Kusz, J., Gfeller, F., Armbruster, T., Bailau, R., Dulski, M., Gazeev, V.M., Pertsev, N.N., Zadov, A.E., Dzieržanowski, P. (2015): Mayenite supergroup, part II: Chlorkyuygenite from Upper Chegem, northern Caucasus Kabardino-Balkaria, Russia, a new microporous mayenite supergroup mineral with “zeolitic” H2O. European Journal of Mineralogy. 27, 113-122
          • Lakargi Mt.
Galuskina, I.O., Krüger, B., Galuskin, E.V. ,Armbruster, T., Gazeev, V.M., Włodyka, R., Dulski, M. & Dzierżanowski, P. (2015): Fluorchegemite, Ca7(SiO4)3F2, a new mineral from the edgrewitebearing endoskarn zone of an altered xenolith in ignimbrites from Upper Chegem Caldera, Northern Caucasus, Kabardina-balkaria, Russia; Occurrence, crystal structure, and new data on the mineral assemblages. Canadian Mineralogist. 53, 325-344.
Galuskin, E. V.; Gazeev, V. M.; Lazic, B.; Armbruster, T.; Galuskina, I. O.; Zadov, A. E.; Pertsev, N. N.; Wrzalik, R.; Dzierzanowski, P.; Gurbanov, A. G. & Bzowska, G. (2009): Chegemite Ca7(SiO4)3(OH)2 - a new humite-group calcium mineral from the Northern Caucasus, Kabardino-Balkaria, Russia. European Journal of Mineralogy 21, 1045-1059.
South Africa
 
  • Free State Province
    • Xhariep District
      • Jagersfontein
Parry J, Williams A F, Wright F E (1932) On bultfonteinite, a new fluorine-bearing hydrous calcium silicate from South Africa. Mineralogical Magazine 23, 145-162; Minerals of South Africa
  • Northern Cape Province
    • Francis Baard District
      • Kimberley
Parry J, Williams A F, Wright F E (1932) On bultfonteinite, a new fluorine-bearing hydrous calcium silicate from South Africa. Mineralogical Magazine 23, 145-162
Parry J, Williams A F, Wright F E (1932) On bultfonteinite, a new fluorine-bearing hydrous calcium silicate from South Africa. Mineralogical Magazine 23, 145-162; Minerals of South Africa
    • Kalahari manganese field
      • Hotazel
Von Bezing, K. L. et al. (1991) The Kalahari manganese field: An Update, Mineralogical Record 22(4) 279-302;
      • Kuruman
        • N'Chwaning Mines
[Von Bezing, K. L. et al. (1991) - The Kalahari (Afrique du Sud) manganese field : an update, Mineralogical Record, 22 (3), 279-302.]
Lapis (2004): 29(9):12; Bonazzi, P., Bindi, L., Medenbach, O., Pagano, R., Lampronti, Menchetti, S. (2007): Olmiite, CaMn[SiO3(OH)](OH), the Mn-dominant analogue of poldervaartite, a new mineral species from Kalahari manganese fields (Republic of South Africa), Mineralogical Magazine, 71, 193-291.
USA
 
  • California
    • Riverside Co.
      • Crestmore
        • Crestmore quarries
          • Sky Blue Hill
Murdoch, Joseph (1954b), Scawtite and bultfonteinite from Crestmore, California: (abstract): Geological Society of America Bulletin: 65: 1347-1348; Murdoch, Joseph (1955b), Bultfonteinite from Crestmore, California: American Mineralogist: 40: 900-906; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 115; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 477.
  • New Jersey
    • Sussex Co.
      • Franklin Mining District
        • Franklin
Dunn(1995):Pt3:363.
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2017, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: October 21, 2017 04:18:26 Page generated: October 9, 2017 04:13:10
Go to top of page