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Spherocobaltite

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Formula:
CoCO3
System:
Trigonal
Colour:
Most commonly dark ...
Hardness:
3 - 4
Member of:
Name:
Named by Albin Weisbach in 1877 from Greek "sphaira", sphere, plus cobalt, alluding to its habit and composition.
Calcite Group.

NOTE: This is the correct and approved IMA spelling ("sphaerocobaltite" is incorrect). Palache, Berman, and Frondel (1954) list this species as cobaltocalite and a confusion is common between the former cobaltocalcite and cobaltoan calcite.

Classification of Spherocobaltite

Approved
5.AB.05

5 : CARBONATES (NITRATES)
A : Carbonates without additional anions, without H2O
B : Alkali-earth (and other M2+) carbonates
14.1.1.5

14 : ANHYDROUS NORMAL CARBONATES
1 : A(XO3)
11.14.1

11 : Carbonates
14 : Carbonates of Co and Ni
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First Recorded Occurrence of Spherocobaltite

Year of Discovery:
1877
Geological Setting of First Recorded Material:
In Co-Ni veins
Associated Minerals at First Recorded Locality:

Occurrences of Spherocobaltite

Geological Setting:
Cobalt deposits with oxidixed zones containing carbonates.

Physical Properties of Spherocobaltite

Vitreous, Sub-Vitreous, Waxy
Diaphaneity (Transparency):
Transparent, Translucent
Colour:
Most commonly dark magenta red; sometimes brownish red, greyish red, or velvet-black (due to surface alteraton)
Streak:
Magenta, red, "peach blossom red"
Hardness (Mohs):
3 - 4
Tenacity:
Brittle
Cleavage:
Poor/Indistinct
On {101¯1} (?)
Density:
4.13 g/cm3 (Measured)    4.21 g/cm3 (Calculated)

Crystallography of Spherocobaltite

Crystal System:
Trigonal
Class (H-M):
3m (3 2/m) - Hexagonal Scalenohedral
Space Group:
R3c
Space Group Setting:
R3c
Cell Parameters:
a = 4.658Å, c = 14.958Å
Ratio:
a:c = 1 : 3.211
Unit Cell Volume:
V 281.06 ų (Calculated from Unit Cell)
Z:
6
Morphology:
Crystals rare. Occurs commonly as small spherical masses with a crystalline surface and concentric and radiated structure; as crusts.
X-Ray Powder Diffraction Data:
d-spacingIntensity
3.55 (40)
2.74 (100)
2.33 (20)
2.11 (20)
1.948 (20)
1.702 (30)
1.697 (30)
1.495 (10)
Comments:
ICDD 11-692 (synthetic)

Optical Data of Spherocobaltite

Type:
Uniaxial (-)
RI values:
nω = 1.855 nε = 1.600
Birefringence:
0.255
Max Birefringence:
δ = 0.255
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
High
Pleochroism:
Visible
Comments:
Dichroic: O = violet-red; E = rose-red.

Chemical Properties of Spherocobaltite

Formula:
CoCO3
Essential elements:
All elements listed in formula:
Common Impurities:
Ca,Ni,Fe,O

Relationship of Spherocobaltite to other Species

Member of:
Other Members of Group:
CalciteCaCO3
Gaspéite(Ni,Mg,Fe)CO3
MagnesiteMgCO3
OtaviteCdCO3
RhodochrositeMnCO3
SideriteFeCO3
SmithsoniteZnCO3
5.AB.05CalciteCaCO3
5.AB.05Gaspéite(Ni,Mg,Fe)CO3
5.AB.05MagnesiteMgCO3
5.AB.05OtaviteCdCO3
5.AB.05RhodochrositeMnCO3
5.AB.05SideriteFeCO3
5.AB.05SmithsoniteZnCO3
5.AB.10AnkeriteCa(Fe2+,Mg)(CO3)2
5.AB.10DolomiteCaMg(CO3)2
5.AB.10KutnohoriteCa(Mn,Mg,Fe)(CO3)2
5.AB.10MinrecorditeCaZn(CO3)2
5.AB.15AragoniteCaCO3
5.AB.15CerussitePbCO3
5.AB.15StrontianiteSrCO3
5.AB.15WitheriteBaCO3
5.AB.20VateriteCaCO3
5.AB.25HuntiteCaMg3(CO3)4
5.AB.30NorsethiteBaMg(CO3)2
5.AB.35AlstoniteBaCa(CO3)2
5.AB.40OlekminskiteSr(Sr,Ca,Ba)(CO3)2
5.AB.40ParalstoniteBaCa(CO3)2
5.AB.45BarytocalciteBaCa(CO3)2
5.AB.50Carbocernaite(Ca,Na)(Sr,Ce,Ba)(CO3)2
5.AB.55Benstonite(Ba,Sr)6(Ca,Mn)6Mg(CO3)13
5.AB.60JuangodoyiteNa2Cu(CO3)2
11.14.2Kolwezite(Cu,Co)2(CO3)(OH)2
11.14.3NullaginiteNi2(CO3)(OH)2
11.14.4HellyeriteNiCO3 · 6H2O
11.14.5OtwayiteNi2(CO3)(OH)2 · H2O
11.14.6ZaratiteNi3(CO3)(OH)4 · 4H2O
11.14.7KambaldaiteNaNi4(CO3)3(OH)3 · 3H2O
11.14.8Glaukosphaerite(Cu,Ni)2(CO3)(OH)2
11.14.9Gaspéite(Ni,Mg,Fe)CO3
11.14.10ReevesiteNi6Fe23+(OH)16(CO3) · 4H2O
11.14.11ComblainiteNi4Co2(OH)12[CO3] · 3H2O
11.14.12SzymańskiiteHg16(Ni,Mg)6(CO3)12(OH)12 · 11H2O

Other Names for Spherocobaltite

Other Information

Other Information:
Slowly soluble in cold HCl. Rapidly soluble in hot acids with effervescence.

Alters to Stainierite.
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 Spherocobaltite

Reference List:
Weisbach, Albin (1877) Jahrb. Berg- und Hüttenwesen, Abh.: 53 (as Sphäro-kobaltit).

Ferro (1899) Atti soc. sc. Genoa: 10: 264.

Larsen, E.S. (1921) The Microscopic Determination of the Nonopaque Minerals, First edition, USGS Bulletin 679: 135.

Pelloux (1927) Ann. Mus. Civico Stor. Nat. Genova: 52: 269.

Ferrari and Colla (1929) Reale accademia nazionale dei Lincei, Rome: 10: 594.

Baccaredda (1932) Rendus Reale accademia nazionale dei Lincei, Rome: 16: 248.

Buttenbach, H. (1947) Les Minéraux de Belgique et du Congo belge, Liége: 236.

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: Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged: 175-176 (as Cobaltocalcite).

Reviews in Mineralogy, Mineralogical Society of America: 11.

European Journal of Mineralogy: 3: 501-505.

American Mineralogist (1961): 46: 1283.

Acta Crystallographica (1986): C42: 4.

Gilbert Gauthier & Michel Deliens (1999): Cobalt Minerals of the Katanga Crescent, Congo. Mineralogical Record 30, 255-267.

D.L. Douglass (1999): Cobaltoan Calcites and Dolomites from Katanga. Mineralogical Record 30, 269-273.

Internet Links for Spherocobaltite

Localities for Spherocobaltite

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 for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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
 
  • Queensland
    • Mount Isa - Cloncurry area
      • Selwyn District
Australian Journal of Mineralogy 1(2): 23
  • South Australia
    • Flinders Ranges
      • North Flinders Ranges
        • Vulkathunha - Gammon Ranges National Park
; Noble et al, 1983, Catalogue of South Australian Minerals. SADM handbook 7
China
 
  • Qinghai Province
    • Haixi Autonomous Prefecture
      • Golmud Co. (Ge'ermu Co.)
        • Qimantage Mts
Chunyan Dong, Xiaoguo Chi, Fengyue Sun, and Yuan Zhang (2005): Multipurpose Utilization of Mineral Resources 1(1), 29-33
Democratic Republic of Congo (Zaïre)
 
  • Katanga (Shaba)
ARLIGUIE M collection
    • Katanga Copper Crescent
      • Kambove District
Lapis 17(3), 13-40 (1992)
        • Kakanda deposit
Rob Lavinsky specimen + Gauthier, G. & Deliens, M. (1999): Cobalt minerals of the Katanga Crescent, Congo. Mineralogical Record 30 (4): 255-273
Lapis 17(3), 13-40 (1992)
        • Kamoya
Weiss, S. (2006): Carrollit, Dolomit, Nickelin, Sphärocobaltit und Baryt aus der Provinz Shaba, Kongo. LAPIS 31 (9), 44-46; King, V. & R.L. Morgan (2005), Crystallograpy of Carrollite from the Kamoya South II mine, Democratic Republic of Congo, Rochester Mineralogical Symposium.
      • Kisamfu
Xiangqian Li, Yanling Yan, and Xianli Xu (2009): Mineral Resources and Geology 29(3), 253-257
      • Kolwezi District
L Rantos collection
Gauthier, G. & Deliens, M. (1999): Cobalt minerals of the Katanga Crescent, Congo. Mineralogical Record 30 (4): 255-273
        • Kolwezi
Lapis 17(3), 13-40 (1992)
[www.johnbetts-fineminerals.com]
Lapis 17(3), 13-40 (1992)
      • Lubumbashi (Elizabethville)
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: 176, 790.
No reference listed
http://www.tenke.com/s/CopperCobaltDeposit.asp
Fay, I., & Barton, M. D. (2012). Alteration and ore distribution in the Proterozoic Mines Series, Tenke-Fungurume Cu–Co district, Democratic Republic of Congo. Mineralium Deposita, 47(5), 501-519.
Fay, I., & Barton, M. D. (2012). Alteration and ore distribution in the Proterozoic Mines Series, Tenke-Fungurume Cu–Co district, Democratic Republic of Congo. Mineralium Deposita, 47(5), 501-519.
Germany
 
  • North Rhine-Westphalia
    • Siegerland
      • Eiserfeld
Wittern: "Mineralfundorte in Deutschland", 2001
  • Saxony
    • Erzgebirge
      • Marienberg District
        • Lauta
Hajek, W. (2010): Kristallwelten Marienberg. Weise Verlag, München.
      • Schneeberg District
        • Neustädtel
[Jahrb. Berg- und Hüttenwesen, Abh.(1877) p. 53; Clark, 1993 - "Hey's Mineral Index"]
Lapis 30(7/8):41-70 (2005)
Greece
 
  • Attikí Prefecture (Attica; Attika)
    • Lavrion District (Laurion; Laurium)
      • Lavrion District Mines
        • Agios Konstantinos [St Constantine] (Kamariza)
No reference listed
Italy
 
  • Emilia-Romagna
    • Parma Province
      • Berceto
        • Corchia mine
ADORNI F., GUELFI F. (1997) - La miniera di Fe e Cu di Corchia, Berceto, Appennino Parmense. - Riv. Min. It., N. 3, 217-250.
  • Liguria
    • Genova Province
      • Sestri Levante
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: 176.
    • Savona Province
      • Castelvecchio di Rocca Barbena
Antofilli, Borgo & Palenzona, 1985. I nostri minerali. Geologia e mineralogia in Liguria. Edizioni Melita, La Spezia.
  • Sardinia
    • Carbonia-Iglesias Province
      • Fluminimaggiore
Stara, P., Rizzo, R., Tanca, G.A. (1996): Iglesiente e Arburese. Miniere e Minerali. Edito a cura dell'EMSA e "varie associazioni mineralogiche", Volume 2°, 192 pp.
    • Medio Campidano Province
      • Gonnosfanadiga
Stara, P., Rizzo, R., Tanca, G.A. (1996): Iglesiente e Arburese. Miniere e Minerali. Edito a cura dell'EMSA e "varie associazioni mineralogiche", Volume 2, 192 pp.
Stara, P., Rizzo, R., Tanca, G.A. (1996): Iglesiente e Arburese. Miniere e Minerali. Edito a cura dell'EMSA e "varie associazioni mineralogiche", Volume 2°, 239 pp.
Japan
 
  • Honshu Island
    • Kinki Region
      • Hyogo Prefecture
        • Asago City
          • Ikuno-cho-ono
Kato (1973) Sakurai Koubutsu Hyohon, 35. (Kinichi Sakurai collection)
Mexico
 
  • Baja California Sur (BC Sur)
    • Mun. de Mulegé
      • Boleo District
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: 176; Mineralogical Record: 29: 43.
Panczner(1987):92-350.
Panczner(1987):92-350.
Panczner (1987): 348, 350.
  • Zacatecas
    • Mun. de Concepción del Oro
      • Aranzazú
Panczner(1987):84-359.
Panczner(1987):350.
Morocco
 
  • Souss-Massa-Draâ Region
    • Ouarzazate Province
      • Tazenakht
        • Bou Azer District (Bou Azzer District)
          • Aghbar
Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
          • Agoudal
Tomasz Praszkier (2010) Lapis, 35, #11, 29-31.
Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
          • Aït Ahmane
Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
          • Bou Azer
Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
          • Oumlil
Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
Slovakia
 
  • Košice Region
    • Rožňava Co.
Koděra et all.,1990: Topografická mineralógia Slovenska, I-III, 1590p
      • Dobšiná Mining District (Dobschau; Topschau)
Zipser Ch. A., 1817: Versuch eines topograpisch-mineralogischen Handbuches von Ungarn. Carl Friedrich Wigand, Oedenburg, 440 p. (in German)
Spain
 
  • Andalusia
    • Almería
      • Huércal-Overa
        • Cuesta Alta
          • Cerro Minado Mines
VIÑALS, J., FAVREAU, G., and EYTIER C. & J.-R. (2010): Bobkingite, capgaronnite, juanitaite, gerhardtite, reevesite and other rare minerals from Cerro Minado, Huercal-Overa (Almería). Mineral Up, 4, 3, 6-23 Versions simultaneously published in Catalan (Mineralogistes de Catalunya); in Spanish version (Revista de Minerales).
    • Córdoba
      • Villanueva de Córdoba
Schnorrer, G. (2000): Die Minerale der ehemaligen Grube Espuela de San Miguel bei Villanueva de Cordoba, Prov. Cordoba in Spanien. Der Aufschluss, 51, 211-222. (in German)
Switzerland
 
  • Wallis (Valais)
Frank Keutsch collection; specimen with spherocobaltite (Ca-free), safflorite and heterogenite.
USA
 
  • Arizona
    • Coconino Co.
      • Cameron District
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 376; Austin, S.R. (1964), Mineralogy of the Cameron area, Coconino Co., AZ, US Atomic Energy Comm. RME 99. Tech Inf. Serv., Oak Ridge, TN: 99.; Bollin, E. M., & Kerr, P. F. (1958). Uranium mineralization near Cameron, Arizona. In Guidebook of the Black Mesa Basin, northern Arizona: New Mexico Geological Society, 9th Field Conference Society Guidebook (Vol. 9, pp. 161-168).
  • Utah
    • Emery Co.
      • San Rafael District (San Rafael Swell)
Am Min 40:201-206
Mineral and/or Locality  
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