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Carlfriesite

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Moctezuma Mine (Bambolla Mine), Moctezuma, Mun. de Moctezuma, Sonora, Mexico
© Christian Rewitzer

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Formula:
CaTe
4+
2
Te
6+
 
O
 
8
System:MonoclinicColour:Yellow
Hardness:3½
Name:For Carl Fries Jr. (1910-1965), USGS.
This page provides mineralogical data about Carlfriesite.

Classification of Carlfriesite

IMA status:Approved
Strunz 8th edition ID:4/K.13-30
Nickel-Strunz 10th (pending) edition ID:4.JK.25

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
K : Tellurites without additional anions, without H2O
Dana 8th edition ID:34.5.3.1

34 : SELENITES, TELLURITES AND SULFITES
5 : A(X3O8)
Hey's CIM Ref.:28.4.2

28 : Selenites, Selenates, Tellurites, and Tellurates
4 : Tellurates
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Type Occurrence of Carlfriesite

Type Locality:Bambollita Mine (Oriental Mine), Moctezuma, Mun. de Moctezuma, Sonora, Mexico
Place of Conservation of Type Material:Harvard University 119080
Year of Discovery:1975
Geological Setting of type material:Cavities in oxidized hydrothermal Au-Te deposit.

Physical Properties of Carlfriesite

Diaphaneity (Transparency):Transparent
Colour:Yellow
Streak:Very pale yellow
Hardness (Mohs):3½
Tenacity:Brittle
Cleavage:Imperfect/Fair
Fair on {010}
Density (measured):6.3 g/cm3
Density (calculated):5.7 g/cm3

Crystallography of Carlfriesite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:B2/b {B1 1 2/b} {C2/c} {C1 2/c 1}
Cell Parameters:a = 12.576(2) Å, b = 5.662(3) Å, c = 9.994(2) Å
β = 115.56(3)°
Ratio:a:b:c = 2.221 : 1 : 1.765
Unit Cell Volume:V 641.98 ų (Calculated from Unit Cell)
Z:4
Morphology:Axe head shaped crystals, radial sprays, botyroidal crusts.

Optical Data of Carlfriesite

Type:Biaxial (-)
RI values: nα = 1.982 nβ = 2.095 nγ = 2.190
2V:Measured: 80° , Calculated: 79°
Maximum Birefringence:δ = 0.208

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Dispersion:strong
Pleochroism:Weak
Comments:In yellows

Chemical Properties of Carlfriesite

Formula:
CaTe
4+
2
Te
6+
 
O
 
8
Essential elements:Ca, O, Te
All elements listed in formula:Ca, O, Te
Empirical Formula:
CaTe
4+
2
Te
6+
 
O
 
8

Relationship of Carlfriesite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.JK.05Winstanleyite
TiTe
4+
3
O
 
8
4.JK.05Walfordite
(Fe
3+
 
,Te
6+
 
)Te
4+
3
O
 
8
4.JK.10Spiroffite
(Mn,Zn)
 
2
Te
4+
3
O
 
8
4.JK.10Zincospiroffite
Zn
 
2
Te
4+
3
O
 
8
4.JK.15Balyakinite
Cu(TeO
 
3
)
4.JK.20Rajite
Cu(Te
4+
2
O
 
5
)
4.JK.30Denningite
(Mn
2+
 
,Ca,Zn)Te
4+
2
O
 
5
4.JK.35Chekhovichite
Bi
 
2
Te
4+
4
O
 
11
4.JK.40Smirnite
Bi
 
2
Te
4+
 
O
 
5
4.JK.45Choloalite
(Cu,Sb)
 
3
(Pb,Ca)
 
3
(TeO
 
3
)
 
6
Cl
4.JK.50Fairbankite
Pb(TeO
 
3
)
4.JK.55Plumbotellurite
Pb(TeO
 
3
)
4.JK.60Magnolite
(Hg
+
2
)(Te
4+
 
O
 
3
)
4.JK.65Moctezumite
Pb(UO
 
2
)(TeO
 
3
)
 
2
4.JK.70Schmitterite
(UO
 
2
)(TeO
 
3
)
4.JK.75Cliffordite
(UO
 
2
)Te
4+
3
O
 
7
Related Minerals - Hey's Index Grouping:

- +
28.4.1Xocomecatlite
Cu
 
3
(TeO
 
4
)(OH)
 
4
28.4.3Yafsoanite
Ca
 
3
Zn
 
3
(TeO
 
6
)
 
2
28.4.4Tlalocite
Cu
 
10
Zn
 
6
(Te
6+
 
O
 
4
)
 
2
(Te
4+
 
O
 
3
)(OH)
 
25
Cl · 27H
 
2
O
28.4.5Oboyerite
H
 
6
(Pb,Ca)
 
6
(Te
4+
 
O
 
3
)
 
3
(Te
6+
 
O
 
6
)
 
2
 · 2H
 
2
O
28.4.6Schieffelinite
Pb
 
8
(TeO
 
4
)
 
5
(SO
 
4
)
 
3
 · 8H
 
2
O
28.4.7Girdite
H
 
2
Pb
 
3
(Te
4+
 
O
 
3
)(Te
6+
 
O
 
6
)
28.4.8Khinite
Pb
2+
 
Cu
2+
3
Te
6+
 
O
 
6
(OH)
 
2
28.4.9Parakhinite
Pb
2+
 
Cu
2+
3
Te
6+
 
O
 
6
(OH)
 
2
28.4.10Dugganite
Pb
 
3
Zn
 
3
(AsO
 
4
)
 
2
(TeO
 
6
)
28.4.11Kuksite
Pb
 
3
Zn
 
3
(PO
 
4
)
 
2
(TeO
 
6
)
28.4.12Cheremnykhite
Pb
 
3
Zn
 
3
(VO
 
4
)
 
2
(TeO
 
6
)
28.4.13Tlapallite
H
 
6
(Ca,Pb)
 
2
(Cu,Zn)
 
3
(TeO
 
3
)
 
4
(TeO
 
6
)(SO
 
4
)
28.4.14Montanite
Bi
 
2
(TeO
 
6
) · 2H
 
2
O
28.4.15Kuranakhite
PbMn
4+
 
Te
6+
 
O
 
6
28.4.16Cuzticite
Fe
3+
2
(TeO
 
6
) · 3H
 
2
O
28.4.17Yecoraite
Fe
3+
3
Bi
 
5
(Te
6+
 
O
 
4
)
 
2
(Te
4+
 
O
 
3
)O
 
9
 · 9H
 
2
O

Other Names for Carlfriesite

Synonyms:
CarlsfriesiteIMA1973-013
Other Languages:
German:Carlfriesit
Carlsfriesit
Russian:Карлфризит
Spanish:Carlfriesita
Carlsfriesita

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 Carlfriesite

Reference List:

- +
American Mineralogist: 61: 1053.

Effenberger, H., Zemann, J., and Mayer, H. (1978): Carlfriesite: crystal structure, revision of chemical formula, and synthesis. American Mineralogist 63, 847-852.

Mineralogical Magazine: 40: 127-130.

Internet Links for Carlfriesite

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  • Raman and XRD data at RRUFF project
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    • Localities for Carlfriesite

    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.
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    (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.
    Mexico
     
    • Sonora
      • Mun. de Moctezuma
        • La Verde District
          • Cumobabi
    		Panczner (1987): 136, 269, 292.
        • Moctezuma
    		Min.Mag.(1975) 40, 127-130; Lapis 2001(1), 11-40
    Panczner(1987):108-401.
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