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Stibiconite

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Colour:
White, creamy-white, ...
Hardness:
5½ - 7
Name:
From Greek "stibi", antimony, plus "konis", powder, alluding to its composition and habit.
Stibiconite was for a long time an acknowledged species, but is now considered questionable, in line with the revised nomenclature of pyrochlore-supergroup minerals (Atencio et al. 2010). Stibiconite is not a discredited mineral. The stibiconite problem is discussed in [pubsites.uws.edu.au].(A. G. CHRISTY, AND D. ATENCIO, (2013))

Classification of Stibiconite

Explanation of status:
IMA status: Questionable. Awaiting further work.
4.DH.20

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
H : With large (+- medium-sized) cations; sheets of edge-sharing octahedra
44.1.1.1

44 : ANTIMONATES
1 : A2X2O6(O,OH,F)
7.13.6

7 : Oxides and Hydroxides
13 : Oxides of As, Sb and Bi
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First Recorded Occurrence of Stibiconite

Year of Discovery:
1862

Occurrences of Stibiconite

Geological Setting:
Secondary mineral in hydrothermal deposits, mainly replacing stibnite.

Physical Properties of Stibiconite

Pearly, Earthy
Diaphaneity (Transparency):
Transparent
Colour:
White, creamy-white, light to sulphur-yellow, orange, light brown; colourless to cloudy in transmitted light
Hardness (Mohs):
5½ - 7
Comment:
When compact
Density:
3.5 - 5.5 g/cm3 (Measured)    

Relationship of Stibiconite to other Species

4.DH.05Brannerite(U4+,REE,Th,Ca)(Ti,Fe3+,Nb)2(O,OH)6
4.DH.05OrthobranneriteU4+U6+Ti4O12(OH)2
4.DH.05Thorutite(Th,U,Ca)Ti2(O,OH)6
4.DH.10KassiteCaTi2O4(OH)2
4.DH.10Lucasite-(Ce)CeTi2(O,OH)6
4.DH.15Bariomicrolite (of Hogarth 1977)
4.DH.15Bariopyrochlore (of Hogarth 1977)
4.DH.15Betafite (of Hogarth 1977)
4.DH.15Bismutomicrolite (of Hogarth 1977)
4.DH.15Calciobetafite (of Mazzi & Munno)
4.DH.15Ceriopyrochlore (of Hogarth 1977)
4.DH.15Cesstibtantite
4.DH.15JixianitePb(W,Fe3+)2(O,OH)7
4.DH.15Hydropyrochlore(H2O,□)2Nb2(O,OH)6(H2O)
4.DH.15Natrobistantite
4.DH.15Plumbopyrochlore (of Skorobogatova et al.)
4.DH.15Plumbomicrolite (of Hogarth 1977)
4.DH.15Plumbobetafite (of Hogarth 1977)
4.DH.15Stibiomicrolite (of Groat et al.)
4.DH.15Strontiopyrochlore (of Hogarth 1977)
4.DH.15Stannomicrolite (of Hogarth 1977)
4.DH.15Stibiobetafite (of Černý et al.)
4.DH.15Uranpyrochlore (of Hogarth 1977)(U,Ca,Ce)2(Nb,Ta)2O6(OH,F)
4.DH.15Yttrobetafite (of Hogarth 1977)
4.DH.15Yttropyrochlore (of Hogarth 1977)
4.DH.15Fluornatromicrolite(Na,Ca,Bi)2Ta2O6F
4.DH.15Bismutopyrochlore (of Chukanov et al.)
4.DH.15Hydrokenoelsmoreite2W2O6(H2O)
4.DH.20BismutostibiconiteBi(Sb5+,Fe3+)2O7
4.DH.20BindheimitePb2Sb2O6O
4.DH.20Monimolite
4.DH.20CuproroméiteCu2Sb2(O,OH)7
4.DH.20StetefeldtiteAg2Sb2(O,OH)7
4.DH.25RosiaitePbSb25+O6
4.DH.30ZirconoliteCaZrTi2O7
4.DH.35LiandratiteU(Nb,Ta)2O8
4.DH.35PetscheckiteUFe(Nb,Ta)2O8
4.DH.40IngersoniteCa3MnSb4O14
4.DH.45PittongiteNa0.22(W,Fe3+)(O,OH)3 · 0.44H2O
7.13.1ArsenoliteAs2O3
7.13.2ClaudetiteAs2O3
7.13.3SénarmontiteSb2O3
7.13.4ValentiniteSb2O3
7.13.5CervantiteSb3+Sb5+O4
7.13.7BahianiteAl5Sb3O14(OH)2
7.13.8Cualstibite-1M(Cu,Al)3(OH)6[Sb5+(OH)6]
7.13.9BismutostibiconiteBi(Sb5+,Fe3+)2O7
7.13.107.13.11StibivaniteSb2VO5
7.13.12BismiteBi2O3
7.13.13SilléniteBi12SiO20

Other Names for Stibiconite

Other Information

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 Stibiconite

Reference List:
Blum and Delffs (1847), Journal pr. Chem.: 40: 318.

Brush (1862), American Journal of Science: 34: 207.

Natta and Baccaredda (1933) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 85: 271 (as Hydroroméite).

Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged: 597-598 (as Stibiconite), 1022 (as Hydroroméite).

Fornaseri (1946) Periodico de Mineralogia-Roma: 15: 47 (as Hydroroméite).

American Mineralogist (1952): 37: 982-999.

Anthony, J.W., Bideaux, R.A., Bladh, K.W., and Nichols, M.C. (1997) Handbook of Mineralogy, Volume III. Halides, Hydroxides, Oxides. Mineral Data Publishing, Tucson, AZ, 628pp.: 528.

Atencio D., Andrade M.B., Christy A.G., Giere R., Kartashov P.M. (2010): The pyrochlore supergroup of minerals: nomenclature. Canadian Mineralogist, 48, 569-594.

Christy A.G., Atencio D. (2013): Clarification of status of species in the pyrochlore supergroup. Mineralogical Magazine, February 2013, Vol. 77(1), pp. 13–20

Internet Links for Stibiconite

Specimens:
The following Stibiconite specimens are currently listed for sale on minfind.com.

Localities for Stibiconite

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.
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