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Huntite

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Formula:
CaMg
 
3
(CO
 
3
)
 
4
System:TrigonalColour:White to Lemon White
Lustre:EarthyHardness:1 - 2
Name:
Named by George T. Faust in honor of Walter Frederick Hunt [September 6, 1882 - December 19, 1975], professor of mineralogy at the University of Michigan.


Huntite forms compact fibrous chalky masses. It is found in caverns in magnesian rocks.

Classification of Huntite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:5/B.03-70
Nickel-Strunz 10th (pending) edition ID:5.AB.25

5 : CARBONATES (NITRATES)
A : Carbonates without additional anions, without H2O
B : Alkali-earth (and other M2+) carbonates
Dana 7th edition ID:14.4.3.1
Dana 8th edition ID:14.4.3.1

14 : ANHYDROUS NORMAL CARBONATES
4 : Miscellaneous
Hey's CIM Ref.:11.4.7

11 : Carbonates
4 : Carbonates of Ca
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Type Occurrence of Huntite

Type Locality:Ala-Mar deposit (Currant Creek deposit; Manzoni deposit), Currant District, White Pine Co., Nevada, USA
Year of Discovery:1953

Physical Properties of Huntite

Lustre:Earthy
Diaphaneity (Transparency):Translucent
Comment:Fine-grained
Colour:White to Lemon White
Streak:White
Hardness (Mohs):1 - 2
Tenacity:Brittle
Cleavage:None Observed
None
Fracture:Irregular/Uneven, Sub-Conchoidal
Density (measured):2.696 g/cm3
Density (calculated):2.87 g/cm3

Crystallography of Huntite

Crystal System:Trigonal
Class (H-M):3 2 - Trapezohedral
Space Group:R3 2
Cell Parameters:a = 9.505Å, c = 7.821Å
Ratio:a:c = 1 : 0.823
Unit Cell Volume:V 611.92 ų (Calculated from Unit Cell)
Z:3
Morphology:Fine-grained to chalky.
X-Ray Powder Diffraction:
Image Loading

Radiation - Copper Kα
Data Set:
Horizontal Axis: ° to ° Vertical Axis: % Source Data: Filtered Data:
Data courtesy of RRUFF project at University of Arizona, used with permission.
X-Ray Powder Diffraction:
d-spacingIntensity
2.89 (20)
2.83 (100)
2.60 (10)
2.43 (10)
1.991 (10)
1.972 (30)
1.765 (20)
1.757 (20)
Comments:14-409

Optical Data of Huntite

Type:Uniaxial
Pleochroism:Non-pleochroic

Chemical Properties of Huntite

Formula:
CaMg
 
3
(CO
 
3
)
 
4
Simplified for copy/paste:CaMg3(CO3)4
Essential elements:C, Ca, Mg, O
All elements listed in formula:C, Ca, Mg, O

Relationship of Huntite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
5.AB.05Calcite
CaCO
 
3
5.AB.05Gaspéite
(Ni,Mg,Fe)CO
 
3
5.AB.05Magnesite
MgCO
 
3
5.AB.05Otavite
CdCO
 
3
5.AB.05Rhodochrosite
MnCO
 
3
5.AB.05Siderite
FeCO
 
3
5.AB.05Smithsonite
ZnCO
 
3
5.AB.05Spherocobaltite
CoCO
 
3
5.AB.10Ankerite
Ca(Fe
2+
 
,Mg)(CO
 
3
)
 
2
5.AB.10Dolomite
CaMg(CO
 
3
)
 
2
5.AB.10Kutnohorite
Ca(Mn,Mg,Fe)(CO
 
3
)
 
2
5.AB.10Minrecordite
CaZn(CO
 
3
)
 
2
5.AB.15Aragonite
CaCO
 
3
5.AB.15Cerussite
PbCO
 
3
5.AB.15Strontianite
SrCO
 
3
5.AB.15Witherite
BaCO
 
3
5.AB.20Vaterite
CaCO
 
3
5.AB.30Norsethite
BaMg(CO
 
3
)
 
2
5.AB.35Alstonite
BaCa(CO
 
3
)
 
2
5.AB.40Olekminskite
Sr(Sr,Ca,Ba)(CO
 
3
)
 
2
5.AB.40Paralstonite
BaCa(CO
 
3
)
 
2
5.AB.45Barytocalcite
BaCa(CO
 
3
)
 
2
5.AB.50Carbocernaite
(Ca,Na)(Sr,Ce,Ba)(CO
 
3
)
 
2
5.AB.55Benstonite
(Ba,Sr)
 
6
(Ca,Mn)
 
6
Mg(CO
 
3
)
 
13
5.AB.60Juangodoyite
Na
 
2
Cu(CO
 
3
)
 
2
Related Minerals - Hey's Index Grouping:

- +
11.4.1Calcite
CaCO
 
3
11.4.2Aragonite
CaCO
 
3
11.4.3Vaterite
CaCO
 
3
11.4.4Monohydrocalcite
CaCO
 
3
· H
 
2
O
11.4.5Ikaite
CaCO
 
3
· 6H
 
2
O
11.4.6Dolomite
CaMg(CO
 
3
)
 
2
11.4.8Sergeevite
Ca
 
2
Mg
 
11
(CO
 
3
)
 
13
· 10H
 
2
O

Other Names for Huntite

Other Languages:
German:Huntit
Russian:Хантит
Spanish:Huntita

Other Information

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 Huntite

Reference List:

- +
Graf, D.L & W.F. Bradley (1962), The crystal structure of huntite Mg3Ca(CO3)4, Acta Crystallographica: 15: 238-242.

American Mineralogist: 38: 4-24.

Kinsman, D.J.J. (1967), Huntite from a carbonate evaporite environment: American Mineralogist: 52: 1332-1340.

American Mineralogist: 71: 163-166.

Internet Links for Huntite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Huntite details from Handbook of Mineralogy (PDF)
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  • Localities for Huntite

    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
     
    • Australian Capital Territory
      • Brindabella Mtn
        • Cotter
    Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV
    • Queensland
    [MinRec 19 p469-490 - "Sielecki, R: The Mount Isa-Cloncurry mineral field"]
        • Mount Isa district
    Sielecki, R. (1988) The Mount Isa-Cloncurry mineral field. Mineralogical Record, Vol. 19, pg. 469-490.
    • South Australia
      • Mt Lofty Ranges
        • South Mt Lofty Ranges (Adelaide Hills)
          • Para Hills
    Salisbury East geological investigation. South Australia. Department of Primary Industries and Resources. Open file Envelope
          • Tea Tree Gully
            • Anstey Hill Recreation Park
    Skinner, B. J. (1958) Huntite frorn Tea Tree Gully, South Australia . Amer. Mineral. 43, 159-162.
    Skinner, B. J. (1958) Huntite frorn Tea Tree Gully, South Australia . Amer. Mineral. 43, 159-162.
    • Victoria
      • Bundoora
      • Deer Park
    Maggie Wilson
      • Gisborne
    Judy Rowe collection
      • Yarra City Shire
        • Collingwood
          • Clifton Hill
    • Western Australia
      • Coolgardie Shire
        • Widgiemooltha
    No reference listed
      • Wiluna Shire
        • Mount Keith
    Grguric, B.A. (2003) Minerals of the MKD5 nickel deposit, Mount Keith, Western Australia. Australian Journal of Mineralogy, Vol. 9, No. 2 , pg. 55-71.
    Austria
     
    • Lower Austria
      • Wachau
        • Schönbühel-Aggsbach
          • Wolfstein
            • Raintal (Dürnberg)
    Erwin Löffler & Gerald Knobloch collections
      • Waldviertel
        • Mühldorf
    Collection of NHM, Vienna
        • Raabs an der Thaya
          • Eibenstein an der Thaya
    Krahuletzmuseum Eggenburg exhibition
    • Styria
      • Bad Radkersburg
        • Klöch
    Postl, W. (1998): Huntit aus dem Nephelinit-Steinbruch in Klöch, Steiermark. - Mitt. Abt. Miner. Landesmuseum Joanneum, 63/63,71-74.
    Canada
     
    • British Columbia
      • Golden Mining Division
        • Radium Hot Springs
    GJ Simandl, KD Hancock (1991) Geology of the Mount Brussilof Magnesite Deposit, Southeastern British Columbia (82J/12, 13). British Columbia Geological Survey Paper 1991-I pp 269-278
    • Saskatchewan
    D. M. Egan (1986) The Occurrence of Scarbroite at Muskiki Lake, Saskatchewan, Canada. Mineralogical Magazine 50:180
    Chile
     
    • Tarapacá Region
      • Iquique Province
        • Chanabaya
    Collected by Reynaldo Contreira
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Central Bohemia Region
        • Benešov (Beneschau)
    Pauliš, P. Veselovský, F., Kadlec, T., Franc, J.: Huntit z kamenolomu Bernartice u Dolních Kralovic (Česká republika). Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 2010, roč. 18, č. 1, s. 85-88.
      • Plzeň Region
        • Klatovy (Klattau)
          • Švihov
    Černý, P., Veselovský, F., Vítovec, J., 2005: Mineralogická charakteristika huntitu z Kokšína jižně od Švihova. - Bull. Mineral.-Petr. Odd. Národ. muzea v Praze, 13, 119-121.
    • Moravia (Mähren; Maehren)
      • Olomouc Region
        • Hranice na Moravě
    Paděra, K., Povondra, P.: Das Vorkommen des Huntits und Magnesits aus den Grotten Zbrašov bei Teplice nad Bečvou (Teplitz a. d. Bečva - Mähren). Acta Universitatis Carolinae, Geologica, 1964, no. 1, s. 15-24.
      • South Moravia Region
        • Oslavany
          • Hrubšice
    Jirásek, J.: Nový nález huntitu u Hrubšic na západní Moravě a otázka jeho vzniku. Acta Musei Moraviae, Sci. geol., 2007, roč. 92, s. 103-109.
      • Vysočina Region
        • Žďár nad Sázavou
          • Věžná
    http://pruvodce.geol.morava.sci.muni.cz/Vezna_hadec/Vezna_hadec_text.htm; Petr Pauliš (2001): Nejzajímavější mineralogická naleziště Moravy a Slezska. Kuttna, Kutná Hora.
    France
     
    • Languedoc-Roussillon
      • Hérault
    No reference listed
    Germany
     
    • Bavaria
      • Franconia
        • Münchberg Metamorphic complex
          • Zell
    Weiss: "Mineralfundstellen, Deutschland West", 1990
    • Thuringia
      • Gera
        • Ronneburg U deposit
    T. Witzke & F. Rüger: Lapis 1998(7/8), 26-64
    Greece
     
    • Attikí Prefecture (Attica; Attika)
      • Lavrion District (Laurion; Laurium)
        • Lavrion District Mines
          • Sounion area
            • Sounion Mines
    Lapis, 24, 7/8 (1999); J. Gröbner und U. Kolitsch (2002): Neufunde von Laurion aus den Jahren 2001 und 2002. Aufschluss 53 (5-6), 363-371; Kolitsch, U., Rieck, B., Brandstätter, F., Schreiber, F., Fabritz, K. H., Blaß, G. & Gröbner, J. (2014): Neufunde aus dem altem Bergbau und den Schlacken von Lavrion (I). Mineralien-Welt 25 (1), 60-75 (in German).
    Hungary
     
    • Komárom-Esztergom Co.
      • Pilisi Basin
    No reference listed
    • Pest Co.
      • Börzsöny Mtns
        • Márianosztra
    Szakáll & Jánosi. Minerals of Hungary, 1995
    Italy
     
    • Liguria
      • La Spezia Province
        • Vara Valley
          • Borghetto Vara
    Japan
     
    • Kyushu Region
      • Nagasaki Prefecture
    Takeuchi & Urakawa (2000) Koubutsu-Gakkai Kou'en-Youshi, 106.
    Takeuchi & Urakawa (2000) Koubutsu-Gakkai Kou'en-Youshi, 106.
    Russia
     
    • Northern Caucasus Region
      • Kabardino-Balkarian Republic
        • Baksan Valley
          • Tyrnyauz Mo-W deposit
    Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    • Urals Region
      • Southern Urals
        • Chelyabinsk Oblast'
    Cesnokov, B., Kotrly, M. and Nisanbajev, T. (1998): Brennende Abraumhalden und Aufschlüsse im Tscheljabinsker Kohlenbecken - eine reiche Mineralienküche. Mineralien-Welt, 9 (3), 54-63 (in German).
    Slovakia
     
    • Banská Bystrica Region
      • Lučenec Co.
    Ozdín D., Farsang Š.: Mineralogická charakteristika a odlíšenie piatich roznych bieliych karbonátov z bazaltového lomu při Bulharoch na jižnom Slovensku. Minerál, 2013, 21, 6, 552-555.
    South Africa
    Cairncross, B. and Dixon, R., (1995), Minerals of South Africa.
    Spain
     
    • Catalonia
      • Barcelona
        • Vallès Occidental
          • Montcada i Reixac
    Mineralogistes de Catalunya (1997), VII (1): 59
    Turkey
     
    • Central Anatolia Region
    Irion, G., Müller, G. (1968): Huntite, Dolomite, Magnesite and Polyhalite of Recent Age from Tuz Gölü, Turkey. Nature, 220, 1309-1310.
    USA
     
    • Arizona
      • Pima Co.
        • Tohono O'odom (Papago) Indian Reservation
          • Cimarron & Sheridan Mts
            • Cimarron District (Salt Well District)
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 253, 284.
    • California
      • Riverside Co.
        • Crestmore
    Carpenter, A.B. (1962), Mineral assemblage, magnesium calcite-aragonite-huntite at Crestmore, California (abstract): Geological Society of America Program of Annual Meeting, 1961, Nov 2-4, Cincinnati, Ohio: 22A; ibid. Special Paper 68: 22A, 146 (1962); Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 220; Kinsman, D.J.J. (1967) Huntite from a carbonate evaporate environment. American Mineralogist: 52: 1332-1340; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 222.
      • San Benito Co.
        • Diablo Range
          • New Idria District
            • Picacho Peak
    Mineralogical Record: 36(4): 337-363.
      • Santa Cruz Co.
        • Santa Cruz
    • Colorado
      • Lake Co.
        • Leadville District
          • Upper Iowa Gulch
    Minerals of Colorado (1997) Eckels, E. B.
    • Maryland
      • Montgomery Co.
        • Rockville
    minerals of washington d.c. area; L.R. Bernstein
    • Nevada
      • Lander Co.
        • Reese River District
    NBMG Spec. Pub. 31 Minerals of Nevada
      • Nye Co.
        • Gabbs District
    Rocks & Minerals, Nov. 1999
      • White Pine Co.
    NBMG Spec. Pub. 31 Minerals of Nevada
    NBMG Spec. Pub. 31 Minerals of Nevada
    NBMG Spec. Pub. 31 Minerals of Nevada
    • New Mexico
      • Eddy Co.
        • Carlsbad
    Clays and Clay Minerals; June 2000; v. 48; no. 3; p. 317-321
    Northrop, Minerals of New Mexico, 3rd. Rev. Ed., 1996
      • San Juan Co.
        • San Juan Basin
    Minerals of New Mexico 3rd ed.
    • North Carolina
      • Yancey Co.
    Tien,P.,1977,Carbonate minerals from a dunite mine,Yancey County,North Carolina
    x-ray diffraction data from 1986 East Carolina Univ. field trip (Pei Lin Tien)
    • Pennsylvania
      • Lancaster Co.
        • State Line Chromite District
          • Fulton Township
    Ref.1; The Mineralogy of Pennsylvania 1966-1975, Robert C. Smith II Ref.2;Annotated Bibliography of Minerals New to the Pennsylvania List - 1965-1974, Reed, Juliet C., Min. Soc. of PA, Inc. (1976): 14, 41, 47-48; Lapham, Davis M. & Barnes, John H. (1971), "Unusual Mins. Found in PA," PA Geol., Vol. 2(6):2.
    • South Dakota
      • Custer Co.
    http://windcave.areaparks.com/parkinfo.html?pid=17374
    • Utah
      • Beaver Co.
        • Rocky Range
          • Rocky District
    UGMS Bull 117 Minerals and Mineral Localities of Utah
      • Juab Co.
        • East Tintic Mts
          • Tintic District
            • Eureka
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    Uzbekistan
     
    • Tashkent Viloyati (Toshkent)
    Golovanov, I. M.: O nachodke chantita v mestorožděnii Kurgašinkan (UzSSR). Doklady Akademii nauk SSSR, 1959, tom. 124, no. 2, s. 398 - 401.
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