Trippkeite
A valid IMA mineral species - grandfathered
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About Trippkeite
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.
Type Locality:
Isostructural with:
Blue crystalline-appearing aggregates with rare crystals. Bright pearly neon-blue internal reflections on cleavages.
Unique Identifiers
Mindat ID:
4023
Long-form identifier:
mindat:1:1:4023:1
GUID
(UUID V4):
(UUID V4):
acafb97e-a010-441d-bbbf-d8cbbf31fe57
IMA Classification of Trippkeite
Approved, 'Grandfathered' (first described prior to 1959)
First published:
1880
Classification of Trippkeite
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
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
45 : ACID AND NORMAL ANTIMONITES AND ARSENITES
1 : Miscellaneous
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Tpk | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Trippkeite
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:
4 on Mohs scale
Tenacity:
Flexible
Cleavage:
Perfect
On {100}, perfect; on {110}, good.
On {100}, perfect; on {110}, good.
Fracture:
Micaceous
Density:
4.8 g/cm3 (Measured) 4.49 g/cm3 (Calculated)
Optical Data of Trippkeite
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.
and does not take into account mineral colouration.
Surface Relief:
Very High
Pleochroism:
Not Visible
Chemistry of Trippkeite
Mindat Formula:
Cu2+As3+2O4
Elements listed:
Crystallography of Trippkeite
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 Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
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Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
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Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
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2D | Stereo | Red-Blue | Red-Cyan
View
CIF File Best | x | y | z | a | b | c
CIF File Best | x | y | z | a | b | c
Rotation
Stop | Start
Stop | Start
Labels
Console Off | On | Grey | Yellow
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
---|---|---|---|---|---|---|---|
0015632 | Trippkeite | Zemann J (1951) Formel und kristallstruktur des trippkeits Tschermaks Mineralogische und Petrographische Mitteilungen 2 417-423 | 1951 | Copiapo, Chile | 0 | 293 | |
0015655 | Trippkeite | Pertlik F (1975) Verfeinerung der kristallstruktur von synthetischem trippkeit, CuAs2O4 Tschermaks Mineralogische und Petrographische Mitteilungen 22 211-217 | 1975 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
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 Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Stage 7: Great Oxidation Event | <2.4 |
47a : [Near-surface hydration of prior minerals] | |
47d : [Arsenates, antimonates, selenates, bismuthinates] |
Type Occurrence of Trippkeite
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.
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 Trippkeite
Relationship of Trippkeite to other Species
Member of:
Other Members of this group:
Igelströmite | Fe3+(SbPb)O4 | Tet. 4/mmm (4/m 2/m 2/m) : P42/mbc |
Manganoschafarzikite | MnSb2O4 | Tet. 4/mmm (4/m 2/m 2/m) : P42/mbc |
Minium | Pb3O4 | Tet. 4/mmm (4/m 2/m 2/m) : P42/mbc |
Schafarzikite | Fe2+Sb3+2O4 | Tet. 4/mmm (4/m 2/m 2/m) : P42/mbc |
Common Associates
Associated Minerals Based on Photo Data:
12 photos of Trippkeite associated with Cuprite | Cu2O |
5 photos of Trippkeite associated with Theoparacelsite | Cu3(As2O7)(OH)2 |
4 photos of Trippkeite associated with Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
3 photos of Trippkeite associated with Domeykite | Cu3As |
3 photos of Trippkeite associated with Copper | Cu |
2 photos of Trippkeite associated with Olivenite | Cu2(AsO4)(OH) |
2 photos of Trippkeite associated with Malachite | Cu2(CO3)(OH)2 |
2 photos of Trippkeite associated with Embreyite | Pb5(CrO4)2(PO4)2 · H2O |
1 photo of Trippkeite associated with Shattuckite | Cu5(Si2O6)2(OH)2 |
1 photo of Trippkeite associated with Connellite | Cu19(SO4)(OH)32Cl4 · 3H2O |
Related Minerals - Strunz-mindat Grouping
4.JA. | Manganoschafarzikite | MnSb2O4 |
4.JA.05 | Leiteite | Zn(As2O4) |
4.JA.10 | Reinerite | Zn3(AsO3)2 |
4.JA.15 | Karibibite | Fe3+3(As3+O2)4(As3+2O5)(OH) |
4.JA.20 | Kusachiite | CuBi2O4 |
4.JA.20 | Schafarzikite | Fe2+Sb3+2O4 |
4.JA.25 | Apuanite | Fe2+Fe3+4Sb3+4O12S |
4.JA.30 | Versiliaite | Fe2Fe4Sb6O16S |
4.JA.35 | Schneiderhöhnite | Fe2+Fe3+3As3+5O13 |
4.JA.40 | Zimbabweite | (Na,K)2PbAs4(Ta,Nb,Ti)4O18 |
4.JA.45 | Ludlockite | PbFe3+4As3+10O22 |
4.JA.50 | Paulmooreite | Pb2[As2O5] |
4.JA.55 | Stibivanite | Sb2VO5 |
4.JA.60 | Chadwickite | (UO2)[HAsO3] |
Other Information
Notes:
Cleavage tends to break the crystals into shreds or fibers parallel to [001], which are easily bent.
Readily soluble in HCl or HNO3.
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 Trippkeite
mindat.org URL:
https://www.mindat.org/min-4023.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Trippkeite
Reference List:
Larsen, Esper S. (1921) The microscopic determination of the nonopaque minerals. Bulletin Vol. 679. US Geological Survey doi:10.3133/b679 p.145
Zemann, Josef (1951) Formel und Kristallstruktur des Trippkeits. Tschermaks Mineralogische und Petrographische Mitteilungen, 2 (4) 417-423 doi:10.1007/bf01135291
Localities for Trippkeite
Locality List
- 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.
All localities listed without proper references should be considered as questionable.
Chile (TL) | |
| Palache et al. (1951) +1 other reference |
France | |
| |
Greece | |
| Rieck et al. (1999) |
Malaysia | |
| Kiong et al. (2004) |
Ariffin (2009) | |
Russia | |
| Kuzhuget et al. (2015) |
South Africa | |
| Meulenbeld et al. (2014) |
USA | |
| Möckel (2018) |
Quick NavTopAbout TrippkeiteUnique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence Other LanguagesRelationshipsCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Roua Mines, Daluis, Nice, Alpes-Maritimes, Provence-Alpes-Côte d'Azur, France