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Stibiconite

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Catorce (Real de Catorce), Mun. de Catorce, San Luis Potosí, Mexico
© 2002 John H. Betts

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System:IsometricColour:White, creamy-white, ...
Hardness:5½ - 7
Name:From Greek "stibi", antimony, plus "konis", powder, alluding to its composition and habit.
A variety of Roméite Group

Stibiconite was for a long time an acknowledged species, but is now considered a variety, in line with the revised nomenclature of pyrochlore-supergroup minerals (Atencio et al. 2010).

Classification of Stibiconite

Strunz 8th edition ID:4/C.11-50
Nickel-Strunz 10th (pending) edition ID: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
Dana 8th edition ID:44.1.1.1

44 : ANTIMONATES
1 : A2X2O6(O,OH,F)
Hey's CIM Ref.:7.13.6

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

Type Locality:Brandholz - Goldkronach District, Fichtelgebirge, Franconia, Bavaria, Germany
Year of Discovery:1862

Occurrences of Stibiconite

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

Physical Properties of Stibiconite

Lustre: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 (measured):3.5 - 5.5 g/cm3

Crystallography of Stibiconite

Crystal System:Isometric
Class (H-M):m3m (4/m 3 2/m) - Hexoctahedral
Space Group:Fd3m {F41/d 3 2/m}
Cell Parameters:a = 10.27Å
Unit Cell Volume:V 1,083.21 ų (Calculated from Unit Cell)
Z:8
Morphology:Massive, compact; botryoidal; in concentric shells

Optical Data of Stibiconite

Type:Isotropic
RI values: n = 1.621 - 2.047
Maximum Birefringence:δ = 0.000 - Isotropic minerals have no birefringence
Surface Relief:Very High
Type:Isotropic

Relationship of Stibiconite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.DH.05Brannerite
(U
4+
 
,REE,Th,Ca)(Ti,Fe
3+
 
,Nb)
 
2
(O,OH)
 
6
4.DH.05Orthobrannerite
U
4+
 
U
6+
 
Ti
 
4
O
 
12
(OH)
 
2
4.DH.05Thorutite
(Th,U,Ca)Ti
 
2
(O,OH)
 
6
4.DH.10Kassite
CaTi
 
2
O
 
4
(OH)
 
2
4.DH.10Lucasite-(Ce)
CeTi
 
2
(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.15Jixianite
Pb(W,Fe
3+
 
)
 
2
(O,OH)
 
7
4.DH.15Hydropyrochlore
(H
 
2
O,□)
 
2
Nb
 
2
(O,OH)
 
6
(H
 
2
O)
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)
 
2
O
 
6
(OH,F)
4.DH.15Yttrobetafite (of Hogarth 1977)
4.DH.15Yttropyrochlore (of Hogarth 1977)
4.DH.15Fluornatromicrolite
(Na,Ca,Bi)
 
2
Ta
 
2
O
 
6
F
4.DH.15Bismutopyrochlore (of Chukanov et al.)
4.DH.15Hydrokenoelsmoreite
◻
 
2
W
 
2
O
 
6
(H
 
2
O)
4.DH.20Bismutostibiconite
Bi(Sb
5+
 
,Fe
3+
 
)
 
2
O
 
7
4.DH.20Oxyplumboroméite
Pb
 
2
Sb
 
2
O
 
6
O
4.DH.20Monimolite
4.DH.20Cuproroméite
Cu
 
2
Sb
 
2
(O,OH)
 
7
4.DH.20Stetefeldtite
Ag
 
2
Sb
 
2
(O,OH)
 
7
4.DH.25Rosiaite
PbSb
5+
2
O
 
6
4.DH.30Zirconolite
CaZrTi
 
2
O
 
7
4.DH.35Liandratite
U(Nb,Ta)
 
2
O
 
8
4.DH.35Petscheckite
UFe(Nb,Ta)
 
2
O
 
8
4.DH.40Ingersonite
Ca
 
3
MnSb
 
4
O
 
14
4.DH.45Pittongite
Na
 
0.22
(W,Fe
3+
 
)(O,OH)
 
3
 · 0.44H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
7.13.1Arsenolite
As
 
2
O
 
3
7.13.2Claudetite
As
 
2
O
 
3
7.13.3Sénarmontite
Sb
 
2
O
 
3
7.13.4Valentinite
Sb
 
2
O
 
3
7.13.5Cervantite
Sb
3+
 
Sb
5+
 
O
 
4
7.13.7Bahianite
Al
 
5
Sb
 
3
O
 
14
(OH)
 
2
7.13.8Cualstibite-1M
(Cu,Al)
 
3
(OH)
 
6
[Sb
5+
 
(OH)
 
6
]
7.13.9Bismutostibiconite
Bi(Sb
5+
 
,Fe
3+
 
)
 
2
O
 
7
7.13.107.13.11Stibivanite
Sb
 
2
VO
 
5
7.13.12Bismite
Bi
 
2
O
 
3
7.13.13Sillénite
Bi
 
12
SiO
 
20

Other Names for Stibiconite

Synonyms:
ArsenostibiteCumengite (of Kenngott)Hydroroméite (of Natta and Baccaredda)StibianiteStibiconise
StibiliteStibioliteVolgerite
Other Languages:
German:Arsenostibit
Hydroromeit
Stibianit
Stibiconit
Stibilit
Stibilith
Stibiolit
Stiblith
Volgerit
Russian:Стибиконит
Simplified Chinese:黄锑华
Spanish:Arsenostibita
Hydroromeita
Stibianita
Stibiconita
Stibilita
Stibiolita
Volgerita
Traditional Chinese:黃銻華

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 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.

Internet Links for Stibiconite

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    • Localities for Stibiconite

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    Locality Updated: Mammoth group, Green Mountain, Green Mountain District (Ben Hur District), Mariposa Co., California, USAFrom Chester S. Lemanski, Jr., 23rd May 2013 17:24:46