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Mcalpineite

A valid IMA mineral species
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About McalpineiteHide

Formula:
Cu3(Te6+O6)
Formula redefined as anhydrous by Carbone et al. (2013); isostructural with bixbyite, Mn2O3 = Mn3(MnO6).
Colour:
Green
Lustre:
Adamantine
Hardness:
3
Specific Gravity:
6.65 (Calculated)
Crystal System:
Isometric
Name:
For the McAlpine mine, California, the type locality.
This page provides mineralogical data about Mcalpineite.


Unique IdentifiersHide

Mindat ID:
7173
Long-form identifier:
mindat:1:1:7173:0
GUID
(UUID V4):
3a70abcd-3e79-4955-80bb-bbde92646aeb

IMA Classification of McalpineiteHide

Approved
IMA Formula:
Cu3Te6+O6
First published:
1994

Classification of McalpineiteHide

7.AB.55

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
A : Sulfates (selenates, etc.) without additional anions, without H2O
B : With medium-sized cations
Dana 7th ed.:
33.2.5.1
33.2.5.1

33 : SELENATES AND TELLURATES
2 : (AB)m(XO6)·xH2O, where x can equal zero

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
MapIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of McalpineiteHide

Adamantine
Transparency:
Transparent, Translucent
Colour:
Green
Streak:
Light green
Hardness:
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
6.65 g/cm3 (Calculated)

Optical Data of McalpineiteHide

Type:
Isotropic
RI values:
nα = 2.010
Birefringence:
Isotropic minerals have no birefringence
Surface Relief:
Moderate

Chemistry of McalpineiteHide

Mindat Formula:
Cu3(Te6+O6)

Formula redefined as anhydrous by Carbone et al. (2013); isostructural with bixbyite, Mn2O3 = Mn3(MnO6).
Common Impurities:
Pb,Ni,Si

Crystallography of McalpineiteHide

Crystal System:
Isometric
Class (H-M):
m3 (2/m 3) - Diploidal
Space Group:
Ia3
Setting:
Ia3
Cell Parameters:
a = 9.555 Å
Unit Cell V:
872.35 ų (Calculated from Unit Cell)
Z:
8
Comment:
two polytypes are known: (1) mcalpineite-1C: Ia-3, with a = 9.537(1) Å and V = 867.4(3) ų; (2) mcalpineite-2O: Pcca , with a = 9.745(3) Å, b = 9.749(2) Å, c = 9.771(2) Å and V = 928.3(4) ų (Missen et al., 2022)

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0020014McalpineiteCarbone C, Basso R, Cabella R, Martinelli A, Grice J D, Lucchetti G (2013) Mcalpineite from the Gambatesa mine, Italy, and redefinition of the species American Mineralogist 98 1899-19052013the Gambatesa mine, Val Graveglia, eastern Liguria, Italy0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
2.753 Å(100)
1.686 Å(65)
1.437 Å(57)
2.384 Å(46)
1.066 Å(26)
1.094 Å(25)
4.770 Å(20)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 7: Great Oxidation Event<2.4
47e : [Vanadates, chromates, manganates]
47h : [Near-surface oxidized, dehydrated minerals]

Type Occurrence of McalpineiteHide

General Appearance of Type Material:
Isolated 0.5 mm-sized emerald green cryptocrystalline crusts.
Place of Conservation of Type Material:
The Natural History Museum, London, England, 1992,374.
Canadian Geological Survey, Ottawa, Canada, NMC 67163.
Associated Minerals at Type Locality:

Synonyms of McalpineiteHide

Other Language Names for McalpineiteHide

German:Mcalpineit
Spanish:Mcalpineita

Common AssociatesHide

Associated Minerals Based on Photo Data:
15 photos of Mcalpineite associated with Eurekadumpite(Cu,Zn)16(TeO3)2(AsO4)3Cl(OH)18 · 7H2O
13 photos of Mcalpineite associated with QuartzSiO2
8 photos of Mcalpineite associated with XocomecatliteCu3(TeO4)(OH)4
3 photos of Mcalpineite associated with JenseniteCu3[TeO6] · 2H2O
3 photos of Mcalpineite associated with MalachiteCu2(CO3)(OH)2
3 photos of Mcalpineite associated with GoldAu
2 photos of Mcalpineite associated with FrankhawthorneiteCu2Te6+O4(OH)2
2 photos of Mcalpineite associated with KhinitePb2+Cu2+3[Te6+O6](OH)2
2 photos of Mcalpineite associated with DugganitePb3Zn3(AsO4)2(TeO6)
1 photo of Mcalpineite associated with UtahiteMgCu4Zn2Te6+3O14(OH)4 · 6H2O

Related Minerals - Strunz-mindat GroupingHide

7.AB.DravertiteCuMg(SO4)2Mon. 2/m
7.AB.DagenaisiteZn3Te6+O6Mon. 2/m : B2/b
7.AB.AndymcdonalditeFe2TeO6Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
7.AB.05MikasaiteFe2(SO4)3Trig. 3 : R3
7.AB.05MillosevichiteAl2(SO4)3Trig. 3 : R3
7.AB.05KoryakiteNaKMg2Al2(SO4)6Trig. 3 : R3
7.AB.10ChalcocyaniteCuSO4Orth. mmm (2/m 2/m 2/m)
7.AB.10ZinkositeZnSO4Orth. mmm (2/m 2/m 2/m) : Pnma
7.AB.15HermannjahniteCuZn(SO4)2Mon. 2/m
7.AB.25OttoitePb2TeO5Mon. 2/m : B2/b

Other InformationHide

Notes:
Raman data: the 1C polytype has a single strong band, ~730 cm⁻¹; the 2O polytype has a broad double maximum, with bands centred at ca. 692 and 742 cm⁻¹
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for McalpineiteHide

References for McalpineiteHide

Localities for McalpineiteHide

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 references and 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Italy
 
  • Liguria
    • Genoa
      • Ne
Castellaro et al. (2021)
        • Reppia
Basso Riccardo +1 other reference
Japan
 
  • Wakayama Prefecture
    • Iwade city
Fujiwara et al (2002)
Mexico
 
  • Sonora
    • Moctezuma Municipality
      • Moctezuma
Dieter Nickolay collection. Mintreasure ...
Norway
 
  • Trøndelag
    • Oppdal
      • Gråurdfjellet
Rumsey et al. (2018)
USA
 
  • Arizona
    • Cochise County
      • Carr Canyon
"The Accidental Pocket" talk presented ...
      • Tombstone Mining District
        • Silver Plume Mine
Marek Chorazewicz (2023)
  • California
    • Mono County
      • Bodie Hills
        • Masonic Mining District
          • New York Hill
Kampf et al. (2018)
Marty
    • San Bernardino County
      • Silver Lake Mining District
        • Soda Mountains
          • Baker
            • Otto Mountain
EDS confirmed by Bob Housley.
Collected by and in the collections of ...
    • Tuolumne County
      • Coulterville Mining District
        • Peñon Blanco Peak
Roberts et al. (1994) +2 other references
  • Nevada
    • Lincoln County
      • Delamar Mining District
        • Delamar Mine
Kampf et al. (2022)
  • Utah
    • Juab County
      • Detroit Mining District
Miyawaki et al. (2019) +1 other reference
Coolbaugh et al. (2020)
      • Tintic Mining District
        • Eureka
Canadian Mineralogist +5 other references
        • Mammoth
Thorne (n.d.)
          • North Star Mine (Star Consolidated Mine)
Thorne (n.d.)
    • Utah County
      • East Tintic Mining District
Georges Favreau collection
 
Mineral and/or Locality  
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