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Trippkeite

A valid IMA mineral species - grandfathered
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About TrippkeiteHide

Formula:
Cu2+As3+2O4
Colour:
Brilliant greenish-blue, pistachio-green; pale bluish green in transmitted light; with neon-blue internal reflections.
Lustre:
Waxy, Greasy, Pearly
Hardness:
4
Specific Gravity:
4.8
Crystal System:
Tetragonal
Member of:
Name:
Named after Dr. Paul Trippke (1851- June 16, 1880), Polish petrologist of University of Breslau who discovered the mineral.
Isostructural with:
Blue crystalline-appearing aggregates with rare crystals. Bright pearly neon-blue internal reflections on cleavages.


Unique IdentifiersHide

Mindat ID:
4023
Long-form identifier:
mindat:1:1:4023:1
GUID
(UUID V4):
acafb97e-a010-441d-bbbf-d8cbbf31fe57

IMA Classification of TrippkeiteHide

Approved, 'Grandfathered' (first described prior to 1959)
First published:
1880

Classification of TrippkeiteHide

4.JA.20

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
A : Arsenites, antimonites, bismuthites; without additional anions, without H2O
45.1.5.1

45 : ACID AND NORMAL ANTIMONITES AND ARSENITES
1 : Miscellaneous

Mineral SymbolsHide

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

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

Physical Properties of TrippkeiteHide

Waxy, Greasy, Pearly
Transparency:
Transparent
Comment:
Not adamantine as commonly given. Bright internal reflections.
Colour:
Brilliant greenish-blue, pistachio-green; pale bluish green in transmitted light; with neon-blue internal reflections.
Streak:
Pale blue
Hardness:
Tenacity:
Flexible
Cleavage:
Perfect
On {100}, perfect; on {110}, good.
Fracture:
Micaceous
Density:
4.8 g/cm3 (Measured)    4.49 g/cm3 (Calculated)

Optical Data of TrippkeiteHide

Type:
Uniaxial (+)
RI values:
nω = 1.900 nε = 2.120
Birefringence:
0.22
Max Birefringence:
δ = 0.220
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Pleochroism:
Not Visible

Chemistry of TrippkeiteHide

Mindat Formula:
Cu2+As3+2O4

Crystallography of TrippkeiteHide

Crystal System:
Tetragonal
Class (H-M):
4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:
P42/mbc
Cell Parameters:
a = 8.592 Å, c = 5.573 Å
Ratio:
a:c = 1 : 0.649
Unit Cell V:
411.41 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Crystals short prismatic to equant, exhibiting {021}, {100}, and {001} as dominant forms, plus four additional forms. Crystals may be bent.
Comment:
Space group attribution based on synthetic material.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0015632TrippkeiteZemann J (1951) Formel und kristallstruktur des trippkeits Tschermaks Mineralogische und Petrographische Mitteilungen 2 417-4231951Copiapo, Chile0293
0015655TrippkeitePertlik F (1975) Verfeinerung der kristallstruktur von synthetischem trippkeit, CuAs2O4 Tschermaks Mineralogische und Petrographische Mitteilungen 22 211-21719750293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
6.07 Å(60)
3.16 Å(100)
3.04 Å(50)
2.72 Å(40)
2.53 Å(20)
1.95 Å(40)
1.64 Å(30)
1.39 Å(20)
Comments:
31-0451

Geological EnvironmentHide

Paragenetic Mode(s):

Type Occurrence of TrippkeiteHide

Place of Conservation of Type Material:
Muséum Nationale d’Histoire Naturelle, Paris, France, number 100.348.
Mineralogisch-Petrographisches Institut und Museum, Bonn, Germany, Tresor des Museums.
Geological Setting of Type Material:
Copper deposit
Associated Minerals at Type Locality:

Other Language Names for TrippkeiteHide

German:Trippkeit
Simplified Chinese:软砷铜矿
Spanish:Trippkeita
Traditional Chinese:軟砷銅礦

Relationship of Trippkeite to other SpeciesHide

Member of:
Other Members of this group:
IgelströmiteFe3+(SbPb)O4Tet. 4/mmm (4/m 2/m 2/m) : P42/mbc
ManganoschafarzikiteMnSb2O4Tet. 4/mmm (4/m 2/m 2/m) : P42/mbc
MiniumPb3O4Tet. 4/mmm (4/m 2/m 2/m) : P42/mbc
SchafarzikiteFe2+Sb3+2O4Tet. 4/mmm (4/m 2/m 2/m) : P42/mbc

Common AssociatesHide

Associated Minerals Based on Photo Data:
12 photos of Trippkeite associated with CupriteCu2O
5 photos of Trippkeite associated with TheoparacelsiteCu3(As2O7)(OH)2
4 photos of Trippkeite associated with ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
3 photos of Trippkeite associated with DomeykiteCu3As
3 photos of Trippkeite associated with CopperCu
2 photos of Trippkeite associated with OliveniteCu2(AsO4)(OH)
2 photos of Trippkeite associated with MalachiteCu2(CO3)(OH)2
2 photos of Trippkeite associated with EmbreyitePb5(CrO4)2(PO4)2 · H2O
1 photo of Trippkeite associated with ShattuckiteCu5(Si2O6)2(OH)2
1 photo of Trippkeite associated with ConnelliteCu19(SO4)(OH)32Cl4 · 3H2O

Related Minerals - Strunz-mindat GroupingHide

4.JA.ManganoschafarzikiteMnSb2O4Tet. 4/mmm (4/m 2/m 2/m) : P42/mbc
4.JA.05LeiteiteZn(As2O4)Mon. 2/m : P21/b
4.JA.10ReineriteZn3(AsO3)2Orth. mmm (2/m 2/m 2/m) : Pbam
4.JA.15KaribibiteFe3+3(As3+O2)4(As3+2O5)(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
4.JA.20KusachiiteCuBi2O4Tet. 4/mmm (4/m 2/m 2/m) : P4/nnc
4.JA.20SchafarzikiteFe2+Sb3+2O4Tet. 4/mmm (4/m 2/m 2/m) : P42/mbc
4.JA.25ApuaniteFe2+Fe3+4Sb3+4O12STet. 4/mmm (4/m 2/m 2/m) : P42/mbc
4.JA.30VersiliaiteFe2Fe4Sb6O16SOrth. mmm (2/m 2/m 2/m) : Pbam
4.JA.35SchneiderhöhniteFe2+Fe3+3As3+5O13Tric. 1 : P1
4.JA.40Zimbabweite(Na,K)2PbAs4(Ta,Nb,Ti)4O18Orth. mmm (2/m 2/m 2/m)
4.JA.45LudlockitePbFe3+4As3+10O22Tric. 1 : P1
4.JA.50PaulmooreitePb2[As2O5]Mon. 2/m : P21/b
4.JA.55StibivaniteSb2VO5Orth.
4.JA.60Chadwickite(UO2)[HAsO3]Tet.

Other InformationHide

Notes:
Cleavage tends to break the crystals into shreds or fibers parallel to [001], which are easily bent.

Readily soluble in HCl or HNO3.
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 TrippkeiteHide

References for TrippkeiteHide

Reference List:

Localities for TrippkeiteHide

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.
Chile (TL)
 
  • Atacama
Palache et al. (1951) +1 other reference
France
 
  • Provence-Alpes-Côte d'Azur
    • Alpes-Maritimes
      • Nice
        • Daluis
Greece
 
  • Attica
    • East Attica
      • Lavreotiki
        • Lavrion mining district
          • Plaka
            • Plaka Mines
Rieck et al. (1999)
Malaysia
 
  • Perak
    • Hulu Perak District
Kiong et al. (2004)
Ariffin (2009)
Russia
 
  • Tuva
    • Sut-Kholsky District
      • Aldan-Maadyr ore cluster
Kuzhuget et al. (2015)
South Africa
 
  • Mpumalanga
    • Nkangala District Municipality
      • Thembisile Hani Local Municipality
Meulenbeld et al. (2014)
USA
 
  • Arizona
    • Mohave County
      • Artillery Mountains
        • Rawhide Wash
Möckel (2018)
 
矿物 and/or 产地  
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