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Schieffelinite

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Schieffelinite

Grand Central Mine, Contention-Grand Central Mine group, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
Schieffelinite, etc.

Tombstone, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
Schieffelinite

Grand Central Mine, Contention-Grand Central Mine group, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
Schieffelinite

Grand Central Mine, Contention-Grand Central Mine group, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
Schieffelinite, etc.

Tombstone, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
Schieffelinite

Grand Central Mine, Contention-Grand Central Mine group, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
Schieffelinite

Grand Central Mine, Contention-Grand Central Mine group, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
Schieffelinite, etc.

Tombstone, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
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About SchieffeliniteHide

Ed Schieffelin
Formula:
Pb10Te6+6O20(OH)14(SO4)(H2O)5
Colour:
Colorless, milk-white
Lustre:
Adamantine
Hardness:
2
Specific Gravity:
4.98
Crystal System:
Orthorhombic
Name:
Named after Ed Schieffelin (1847-1897), the prospector who discovered the Tombstone mining district.
Isostructural with:
Chromschieffelinite
A chromate-analogue of schieffelinite is mentioned in Marty et al. (2010), and was later approved as chromschieffelinite.


Classification of SchieffeliniteHide

IMA status:
Approved
Approval Year:
1979
Strunz 8th ed.:
4/K.17-20
Nickel-Strunz 10th (pending) ed.:
7.CD.55

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
C : Sulfates (selenates, etc.) without additional anions, with H2O
D : With only large cations
Dana 7th ed.:
33.3.1.1
Dana 8th ed.:
33.3.1.1

33 : SELENATES AND TELLURATES
3 : Compound Selenates and Tellurates
Hey's CIM Ref.:
28.4.6

28 : Selenites, Selenates, Tellurites, and Tellurates
4 : Tellurates

Physical Properties of SchieffeliniteHide

Lustre:
Adamantine
Transparency:
Transparent, Translucent
Colour:
Colorless, milk-white
Hardness:
2 on Mohs scale
Cleavage:
Very Good
Easy on {010}
Density:
4.98(12) g/cm3 (Measured)    5.15 g/cm3 (Calculated)

Optical Data of SchieffeliniteHide

Type:
Biaxial (-)
RI values:
nα = 1.897 nβ = 1.940 nγ = 1.942
2V:
Measured: 24° , Calculated: 22°
Max Birefringence:
δ = 0.045
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
r > v extreme

Chemical Properties of SchieffeliniteHide

Formula:
Pb10Te6+6O20(OH)14(SO4)(H2O)5
Elements listed:
H, O, Pb, S, Te - search for minerals with similar chemistry

Crystallography of SchieffeliniteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Cmcm
Setting:
Cmcm
Cell Parameters:
a = 9.67 Å, b = 19.56 Å, c = 10.47 Å
Ratio:
a:b:c = 0.494 : 1 : 0.535
Unit Cell V:
1,980.35 ų (Calculated from Unit Cell)
Z:
16
Morphology:
Platy or scaly to 1mm

Type Occurrence of SchieffeliniteHide

Type Locality:
ⓘ Joe Mine (Joe shaft), Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
General Appearance of Type Material:
Clusters of intergrown colorless or milk-white scales.
Place of Conservation of Type Material:
Smithsonian R18474
Geological Setting of Type Material:
In a shattered quartz vein.

Synonyms of SchieffeliniteHide

Other Language Names for SchieffeliniteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Rodalquilarite2 photos of Schieffelinite associated with Rodalquilarite on mindat.org.
Girdite2 photos of Schieffelinite associated with Girdite on mindat.org.
Emmonsite1 photo of Schieffelinite associated with Emmonsite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

7.CD.Campostriniite(Bi3+,Na)3(NH4,K)2Na2(SO4)6·H2OMon. 2/m : B2/b
7.CD.05MatteucciteNaHSO4 · H2OMon.
7.CD.10MirabiliteNa2SO4 · 10H2OMon. 2/m
7.CD.15Lecontite(NH4,K)NaSO4 · 2H2OOrth. 2 2 2 : P21 21 21
7.CD.20HydroglauberiteNa10Ca3(SO4)8 · 6H2OMon.
7.CD.25EugsteriteNa4Ca(SO4)3 · 2H2OMon.
7.CD.30GörgeyiteK2Ca5(SO4)6 · H2OMon.
7.CD.35Koktaite(NH4)2Ca(SO4)2 · H2OMon.
7.CD.35SyngeniteK2Ca(SO4)2 · H2OMon. 2/m : P21/m
7.CD.40GypsumCaSO4 · 2H2OMon. 2/m
7.CD.45BassaniteCaSO4 · 0.5H2OMon. 2 : B2
7.CD.50Zircosulfate(Zr,Ti)(SO4)2 · 4H2OOrth.
7.CD.60MontaniteBi2(TeO6) · 2H2O
7.CD.65OmongwaiteNa2Ca5(SO4)6 · 3H2OMon. 2 : B2

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

28.4.1XocomecatliteCu3(TeO4)(OH)4Orth.
28.4.2CarlfriesiteCaTe4+2Te6+O8Mon. 2/m : B2/b
28.4.3YafsoaniteCa3Zn3(TeO6)2Iso. m3 (2/m 3)
28.4.4TlalociteCu10Zn6(Te6+O4)2(Te4+O3)(OH)25Cl · 27H2OOrth.
28.4.5OboyeriteH6(Pb,Ca)6(Te4+O3)3(Te6+O6)2 · 2H2OTric.
28.4.7GirditeH2Pb3(Te4+O3)(Te6+O6)Mon. m
28.4.8KhinitePb2+Cu2+3[Te6+O6](OH)2Orth. mm2 : Fdd2
28.4.9Khinite-3TPb2+Cu2+3Te6+O6(OH)2Trig. 3 : P32
28.4.10DugganitePb3Zn3(AsO4)2(TeO6)Trig. 3 2 : P3 2 1
28.4.11KuksitePb3Zn3(PO4)2(TeO6)Trig. 3 2 : P3 2 1
28.4.12CheremnykhitePb3Zn3(VO4)2(TeO6)Orth.
28.4.13Tlapallite(Ca,Pb)3CaCu6[Te4+3Te6+O12]2(Te4+O3)2(SO4)2·3H2OTrig. 3 2 : P3 2 1
28.4.14MontaniteBi2(TeO6) · 2H2O
28.4.15KuranakhitePbMn4+Te6+O6Orth.
28.4.16CuzticiteFe3+2(TeO6) · 3H2OHex.
28.4.17YecoraiteFe3+3Bi5(Te6+O4)2(Te4+O3)O9 · 9H2O

Other InformationHide

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 SchieffeliniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Williams, S.A. (1980a), Schieffelinite, a new lead tellurate-sulfate from Tombstone, AZ, Mineralogical Magazine: 43: 771-773.
American Mineralogist (1981): 66: 219.
Marty, J., Kampf, A. R., Housley, R. M., Mills, S. J. & Weiß, S.. (2010). Seltene neue Tellurmineralien aus Kalifornien, Utah, Arizona und New Mexiko (USA). Lapis, 35 (12), 42-51; 66.

Internet Links for SchieffeliniteHide

Localities for SchieffeliniteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
China
 
  • Hebei
    • Zhangjiakou
      • Chongli Co.
Jiuling Li, Makovicky, E., Rose Hansen, J., Petersen, S.B., Feng Qi, Yanhe Cui, and Qingsheng Xu (2001): Geoscience 15(2), 189-196
USA
 
  • Arizona
    • Cochise Co.
      • Tombstone Hills
        • Tombstone District
          • Contention-Grand Central Mine group
Rocks & Min.:57:12.
In the collection of Brent Thorne
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 364; Williams, S.A. (1980a), Schieffelinite, a new lead tellurate-sulfate from Tombstone, AZ, Mineralogical Magazine: 43: 771-773; Rocks & Min.:57:16.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.:76
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