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Tangeite

A valid IMA mineral species - grandfathered
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About TangeiteHide

Formula:
CaCu(VO4)(OH)
Colour:
yellow, yellow-green, olive green, green to dark green; light green in transmitted light.
Lustre:
Sub-Vitreous, Resinous, Pearly
Hardness:
Specific Gravity:
3.75
Crystal System:
Orthorhombic
Name:
Named by Aleksandr Evgenievich Fersman in 1925 after its discovery locality located near the Tange Gorge, Fergana Valley, Alai Mountains, Kyrgyzstan.
Adelite-Descloizite Group. Conichalcite-Tangeite Series.

This name replaced calciovolborthite (Basso et al., 1994).

A secondary mineral found in sandstone and in the oxidized zones of vanadium-bearing deposits.
Easily confused with the copper vanadate volborthite.


Unique IdentifiersHide

Mindat ID:
4073
Long-form identifier:
mindat:1:1:4073:6
GUID
(UUID V4):
d5724615-3211-4ed2-bda7-a407e229a3aa

IMA Classification of TangeiteHide

Approved, 'Grandfathered' (first described prior to 1959)

Classification of TangeiteHide

8.BH.35

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
H : With medium-sized and large cations, (OH,etc.):RO4 = 1:1
41.5.1.6

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
5 : (AB)2(XO4)Zq
21.1.13

21 : Vanadates (and vanadates with arsenate or phosphate)
1 : Vanadates of the alkalis and Cu

Mineral SymbolsHide

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

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

Physical Properties of TangeiteHide

Sub-Vitreous, Resinous, Pearly
Transparency:
Transparent, Translucent
Comment:
Luster pearly on cleavage surfaces.
Colour:
yellow, yellow-green, olive green, green to dark green; light green in transmitted light.
Streak:
light yellow green
Hardness:
3½ on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
On {010}, perfect; on {001}, good.
Density:
3.75 g/cm3 (Measured)    3.84 g/cm3 (Calculated)

Optical Data of TangeiteHide

Type:
Biaxial (-)
RI values:
nα = 2.010 nβ = 2.050 nγ = 2.090
2V:
Measured: 83° , Calculated: 88°
Birefringence:
0.08
Max Birefringence:
δ = 0.080
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
r > v, strong
Optical Extinction:
Parallel
Pleochroism:
Visible
Comments:
X = Brown
Y = Brown
Z = Green
Comments:
XYZ = abc

Chemistry of TangeiteHide

Mindat Formula:
CaCu(VO4)(OH)

Crystallography of TangeiteHide

Crystal System:
Orthorhombic
Class (H-M):
2 2 2 - Disphenoidal
Space Group:
P21 21 21
Setting:
P21 21 21
Cell Parameters:
a = 7.45 Å, b = 9.26 Å, c = 5.91 Å
Ratio:
a:b:c = 0.805 : 1 : 0.638
Unit Cell V:
407.71 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Crystals are unusual, platy and short prismatic with acute terminations. Occurs as scaly aggregates, rosette-shaped at times, also fibrous to dense massive, botryoidal to spheroidal.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0014838TangeiteBasso R, Palenzona A, Zefiro L (1989) Crystal structure refinement of a Sr-bearing term related to copper vanadates and arsenates of adelite and descloizite groups Neues Jahrbuch fur Mineralogie, Monatshefte 1989 300-3081989Molinello mine, Val Graveglia, Northern Appenines, Eastern Liguria, Italy0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
5.86 Å(40)
4.15 Å(75)
3.73 Å(40)
3.14 Å(60)
2.88 Å(100)
2.61 Å(100)
1.73 Å(30)
1.61 Å(60)
Comments:
ICDD 31-265

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 7: Great Oxidation Event<2.4
47a : [Near-surface hydration of prior minerals]
47e : [Vanadates, chromates, manganates]
Geological Setting:
Found in sandstone and in the oxidized zones of vanadium-bearing deposits.

Type Occurrence of TangeiteHide

Place of Conservation of Type Material:
A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, (m6065, m6066, & m6068).
Geological Setting of Type Material:
Sedimentary deposits

Synonyms of TangeiteHide

Other Language Names for TangeiteHide

Relationship of Tangeite to other SpeciesHide

Other Members of this group:
AdeliteCaMg(AsO4)(OH)Orth. 2 2 2 : P21 21 21
ArsendescloizitePbZn(AsO4)(OH)Orth. 2 2 2 : P21 21 21
AustiniteCaZn(AsO4)(OH)Orth. 2 2 2 : P21 21 21
ČechitePbFe2+(VO4)(OH)Orth. mmm (2/m 2/m 2/m)
CobaltaustiniteCaCo(AsO4)(OH)Orth. 2 2 2 : P21 21 21
ConichalciteCaCu(AsO4)(OH)Orth. 2 2 2 : P21 21 21
DescloizitePbZn(VO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
DuftitePbCu(AsO4)(OH)Orth. 2 2 2 : P21 21 21
Duftite-alphaPbCu(AsO4)(OH)
GottlobiteCaMg(VO4)(OH)Orth. 2 2 2 : P21 21 21
HermannroseiteCaCu(PO4)(OH)Orth. 2 2 2 : P21 21 21
MottramitePbCu(VO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
NickelaustiniteCaNi(AsO4)(OH)Orth. 2 2 2 : P21 21 21
PyrobelonitePbMn2+(VO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
Unnamed (Pb-analogue of Nickelaustinite)PbNi(AsO4)(OH)
VuagnatiteCaAl(SiO4)(OH)Orth. 2 2 2 : P21 21 21
Forms a series with:

Common AssociatesHide

Associated Minerals Based on Photo Data:
34 photos of Tangeite associated with TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
15 photos of Tangeite associated with MalachiteCu2(CO3)(OH)2
15 photos of Tangeite associated with SulvaniteCu3VS4
15 photos of Tangeite associated with QuartzSiO2
11 photos of Tangeite associated with VolborthiteCu3(V2O7)(OH)2 · 2H2O
8 photos of Tangeite associated with CalciteCaCO3
5 photos of Tangeite associated with PapagoiteCaCu[H3AlSi2O9]
5 photos of Tangeite associated with ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
4 photos of Tangeite associated with BrauniteMn2+Mn3+6(SiO4)O8
4 photos of Tangeite associated with SeleniumSe

Related Minerals - Strunz-mindat GroupingHide

8.BH.CrimsonitePbFe3+2(PO4)2(OH)2Orth. mmm (2/m 2/m 2/m) : Cccm
8.BH.ReznitskyiteCaMg(VO4)FMon. 2/m : B2/b
8.BH.CuprozheshengitePb4CuZn2(AsO4)2(PO4)2(OH)2Tric. 1 : P1
8.BH.ZheshengitePb4ZnZn2(AsO4)2(PO4)2(OH)2Tric. 1 : P1
8.BH.PeterchiniteZn3Zn2(OH)6As[O3(OH)3]Mon. 2/m : B2/m
8.BH.05ThadeuiteCa(Mg,Fe2+)3(PO4)2(OH,F)2Orth. 2 2 2 : C2 2 21
8.BH.10DurangiteNaAl(AsO4)FMon. 2/m : B2/b
8.BH.10IsokiteCaMg(PO4)FMon. 2/m : B2/b
8.BH.10LacroixiteNaAl(PO4)FMon. 2/m : B2/b
8.BH.10MaxwelliteNaFe3+(AsO4)FMon. 2/m : P2/m
8.BH.10PanasqueiraiteCaMg(PO4)(OH,F)Mon.
8.BH.10KononoviteNaMg(SO4)FMon. 2/m : B2/b
8.BH.10ArsenatrotitaniteNaTi(AsO4)OMon. 2/m : B2/b
8.BH.15DrugmanitePb2(Fe3+,Al)(PO4)(PO3OH)(OH)2Mon. 2/m : P21/b
8.BH.20Bjarebyite(Ba,Sr)(Mn2+,Fe2+,Mg)2Al2(PO4)3(OH)3Mon. 2/m : P21/m
8.BH.20CirroliteCa3Al2(PO4)3(OH)3 (?)
8.BH.20KulaniteBa(Fe2+,Mn2+,Mg)2(Al,Fe3+)2(PO4)3(OH)3Mon. 2/m : P21/m
8.BH.20PenikisiteBa(Mg,Fe2+,Ca)2Al2(PO4)3(OH)3Mon. 2/m : P21/m
8.BH.20PerloffiteBa(Mn2+,Fe2+)2Fe3+2(PO4)3(OH)3Mon. 2/m : P21/m
8.BH.20JohntomaiteBaFe2+2Fe3+2(PO4)3(OH)3Mon. 2/m : P21/m
8.BH.20Bjarebyite Group
8.BH.20StrontioperloffiteSrMn2+2Fe3+2(PO4)3(OH)3Mon. 2/m : P21/m
8.BH.20PlumboperloffitePbMn2+2Fe3+2(PO4)3(OH)3Mon. 2/m : P21/m
8.BH.25Bertossaite(Li,Na)2(Ca,Fe2+,Mn2+)Al4(PO4)4(OH,F)4Orth. mmm (2/m 2/m 2/m)
8.BH.25Palermoite(Li,Na)2(Sr,Ca)Al4(PO4)4(OH)4Orth. mmm (2/m 2/m 2/m)
8.BH.25NatropalermoiteNa2SrAl4(PO4)4(OH)4Orth. mmm (2/m 2/m 2/m)
8.BH.30CarminitePbFe3+2(AsO4)2(OH)2Orth. mmm (2/m 2/m 2/m) : Cccm
8.BH.30SewarditeCaFe3+2(AsO4)2(OH)2Orth. mmm (2/m 2/m 2/m) : Cccm
8.BH.35AdeliteCaMg(AsO4)(OH)Orth. 2 2 2 : P21 21 21
8.BH.35ArsendescloizitePbZn(AsO4)(OH)Orth. 2 2 2 : P21 21 21
8.BH.35AustiniteCaZn(AsO4)(OH)Orth. 2 2 2 : P21 21 21
8.BH.35CobaltaustiniteCaCo(AsO4)(OH)Orth. 2 2 2 : P21 21 21
8.BH.35ConichalciteCaCu(AsO4)(OH)Orth. 2 2 2 : P21 21 21
8.BH.35DuftitePbCu(AsO4)(OH)Orth. 2 2 2 : P21 21 21
8.BH.35GabrielsonitePbFe3+(As3+O3)OOrth. mm2 : Pmc21
8.BH.35NickelaustiniteCaNi(AsO4)(OH)Orth. 2 2 2 : P21 21 21
8.BH.35Duftite-alphaPbCu(AsO4)(OH)
8.BH.35GottlobiteCaMg(VO4)(OH)Orth. 2 2 2 : P21 21 21
8.BH.35HermannroseiteCaCu(PO4)(OH)Orth. 2 2 2 : P21 21 21
8.BH.40ČechitePbFe2+(VO4)(OH)Orth. mmm (2/m 2/m 2/m)
8.BH.40DescloizitePbZn(VO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
8.BH.40MottramitePbCu(VO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
8.BH.40PyrobelonitePbMn2+(VO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
8.BH.40Khorixasite(Bi0.670.33)Cu(VO4)(OH)Mon. 2/m : P2/m
8.BH.45BayldonitePbCu3(AsO4)2(OH)2Mon. 2/m : B2/b
8.BH.45VésigniéiteBaCu3(VO4)2(OH)2Mon. 2/m : B2/m
8.BH.50PaganoiteNiBi(AsO4)OTric. 1 : P1
8.BH.55HarrisoniteCa(Fe2+,Mg)6(PO4)2(SiO4)2Trig. 3m (3 2/m) : R3m
8.BH.55JagoweriteBaAl2(PO4)2(OH)2Tric.
8.BH.60AttakoliteCaMn2+Al4(SiO3OH)(PO4)3(OH)4Mon. 2/m : B2/m
8.BH.65LeningraditePbCu3(VO4)2ClOrth. mmm (2/m 2/m 2/m) : Ibam
8.BH.70KatiarsiteKTiO(AsO4)Orth. mm2 : Pna21
8.BH.70YurgensoniteK2SnTiO2(AsO4)2Orth. mm2 : Pna21
8.BH.75MelanarsiteK3Cu7Fe3+O4(AsO4)4Mon. 2/m : B2/b
8.BH.80MoraskoiteNa2Mg(PO4)FOrth. mmm (2/m 2/m 2/m) : Pbcn
8.BH.80EvseeviteNa2Mg(AsO4)FOrth. mmm (2/m 2/m 2/m) : Pbcn
8.BH.85PiccoliiteNaCaMn3+2(AsO4)2O(OH)Orth. mmm (2/m 2/m 2/m) : Pbcm

Fluorescence of TangeiteHide

Not fluorescent.

Other InformationHide

Notes:
Soluble in acids.
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 TangeiteHide

References for TangeiteHide

Reference List:

Localities for TangeiteHide

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.
Australia
 
  • South Australia
    • Flinders Ranges
      • North Flinders Ranges
        • Mount Lyndhurst station
Bosworth
Collection of Mark Willoughby
Austria
 
  • Salzburg
    • Hallein District
      • Adnet
MEIXNER (1976)
Meixner (1976) +1 other reference
MEIXNER (1978) +1 other reference
Canada
 
  • British Columbia
    • Vancouver Island
      • Nanaimo Mining Division
        • Menzies Bay
INGELSON (1984)
Chile
 
  • Antofagasta
    • Antofagasta Province
      • Taltal
bob jenkins collection
Germany
 
  • Lower Saxony
    • Göttingen District
      • Harz (Landkreis Göttingen)
  • Rhineland-Palatinate
    • Mayen-Koblenz
      • Pellenz
        • Nickenich
86. +3 other references
      • Vordereifel
Hentschel (1987) +1 other reference
        • Ettringen
Schüller (1990)
    • Vulkaneifel
      • Daun
        • Dockweiler
Blaß et al. (2015)
        • Oberstadtfeld
Blass et al. (1996) +1 other reference
  • Schleswig-Holstein
    • Helgoland
Markus Gerstmann - Collection
  • Thuringia
    • Gotha District
      • Friedrichroda
        • Gottlob Hill
Palache et al. (1951) +1 other reference
Italy
 
  • Liguria
    • Genoa
      • Ne
Palenzona A. (1987)
        • Reppia
Redazione (2005)
    • La Spezia Province
      • Borghetto di Vara
analysed by Dr. Anthony Kampf
  • Tuscany
    • Massa-Carrara Province
Orlandi (2011)
Kyrgyzstan
 
  • Batken Region
    • Kadamjay District
Karpenko et al. (2004)
  • Osh Region
    • Aravan District
      • Tyuya-Muyun Massif
Fersman et al. (1925) +8 other references
Fersman et al. (1925) +7 other references
Nenadkevich et al. (1926) +1 other reference
Mexico
 
  • Sonora
    • Santa Cruz Municipality
      • Milpillas
Jordi Fabre +1 other reference
Namibia
 
  • Kunene Region
    • Khorixas
      • Mesopotamia copper valley
Niedermayr (2001)
  • Oshikoto Region
    • Tsumeb
Franz Neuhold collection. +1 other reference
  • Otjozondjupa Region
    • Grootfontein Constituency
von Bezing et al. (2016)
Russia
 
Palache et al. (1951)
UK
 
  • England
    • Leicestershire
      • Hinckley and Bosworth
        • Stanton under Bardon
          • Cliffe Hill Quarry
Green et al. (2008)
      • Leicester
[Specimen in the Natural History Museum +3 other references
King et al. (1971) +1 other reference
  • Wales
    • Gwynedd
      • Llandygai
Bevins (1994) +1 other reference
USA
 
  • Arizona
    • Apache County
      • Dinnehotso
Gavasci (1968) +1 other reference
    • Cochise County
      • Tombstone Mining District
Galbraith (1959) +1 other reference
    • Coconino County
      • Prospect Canyon Mining District
Wenrich (1989) +1 other reference
    • La Paz County
      • New Water Mountains
        • New Water Mining District
          • Moore Mine group
Anthony et al. (1995)
Hunt (1983)
Hunt (1983)
    • Navajo County
      • Mineral Mining District
        • Mystery Valley
          • Monument No. 1 channel (Channel No. 36)
Galbraith (1959) +1 other reference
    • Yavapai County
      • Bradshaw Mountains (Bradshaw Range)
        • Big Bug Mining District
Anthony et al. (1995)
  • California
    • Glenn County
      • Chrome
        • Grindstone Creek
Palache et al. (1951)
    • Imperial County
      • Cargo Muchacho Mountains
        • Cargo Muchacho Mining District (Hedges Mining District; Ogilby Mining District)
          • Obregon
Robert E.Walstrom Collection
    • Inyo County
      • Inyo Mts (Inyo Range)
        • Kearsarge Mining District [2]
          • Kearsarge
Paul M. Adams (2003)
    • San Bernardino County
      • Signal Mining District (Vontrigger Mining District)
        • Piute Range [N]
          • Signal Hill
- (1917) +3 other references
  • Colorado
    • Custer County
Eckel et al. (1997)
    • Huerfano County
      • La Veta Pass Area
Eckel et al. (1997)
    • Moffat County
      • Skull Creek Mining District (Blue Mountain Mining District)
Eckel et al. (1997)
    • Montrose County
      • Uravan Mining District
Eckel et al. (1997)
Eckel et al. (1997)
Eckel et al. (1997)
    • Park County
      • Garo Area
Palache et al. (1951) +1 other reference
    • San Miguel County
      • Ophir Mining District (Iron Springs Mining District)
Palache et al. (1951)
      • Slick Rock Mining District
        • Red Rock Mine Group
In the collection of Alex Earl
  • Michigan
    • Keweenaw County
      • Grant Township
        • Copper Harbor
Heinrich et al. (2004)
  • Montana
    • Madison County
      • Norwegian Mining District (Whitehall Mining District)
Gibson (2018)
Anthony et al. (1995)
  • Nevada
    • Lyon County
      • Singatse Range
        • Yerington Mining District
          • Ludwig
Rocks & Minerals
      • Wilson Mining District
        • Cambridge Hills
Castor et al. (2004)
    • Nye County
      • Toquima Range
        • Manhattan Mining District
Castor et al. (2004)
    • Pershing County
Castor et al. (2004)
  • New Mexico
    • Socorro County
      • Bear Mountains Mining District
Northrop et al. (1996)
Barton et al. (2018)
  • Utah
    • Grand County
Bullock (1981)
Bullock (1981)
Collection of Alex Earl
    • Juab County
      • Tintic Mining District
        • Mammoth
Collected by and in the collection of ...
Collected by and in the collection of ...
    • San Juan County
      • La Sal Creek Mining District
Collected by and in the collection of ...
      • Monitor Butte
Bullock (1981)
    • Tooele County
      • Greeley Mining District
Rick Dalrymple Collection +17 other references
 
Mineral and/or Locality  
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