Trippkeite Mineral Data (original) (raw)

General Trippkeite Information

Help on Chemical Formula: Chemical Formula:

CuAs+++2O4

Help on Composition: Composition:

Molecular Weight = 277.39 gm

Copper 22.91 % Cu 28.68 % CuO

Arsenic 54.02 % As 71.32 % As2O3

Oxygen 23.07 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

CuAs2O4

Help on Environment: Environment:

In a copper deposit.

Help on IMA Status: IMA Status:

Valid Species (Pre-IMA) 1880

Help on Locality: Locality:

Copiapo, Atacama, Chile. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Paul Trippke (1851-1880), Polish mineralogist, who discovered the mineral.

Help on Name Pronunciation: Name Pronunciation:

Trippkeite + Pronunciation Say TRIPPKEITE

Help on Synonym: Synonym:

ICSD 4287

PDF 31-451

Trippkeite Image

Click Here for Larger Trippkeite Image in a New Browser Window Images:

Click Here for Larger Trippkeite Image Trippkeite Comments: Tiny bluegreen crystals of trippkeite, maximum size about 1 mm in volcanic rock. Type specimen for trippkeite. Location: Copiapo, Atacama, Chile.Scale: Specimen Size 14x6 mm. © German Type Specimen Catalogue

Trippkeite Crystallography

Help on Axial Ratios: Axial Ratios:

a:c = 1:0.64862

Help on Cell Dimensions: Cell Dimensions:

a = 8.592, c = 5.573, Z = 4; V = 411.41 Den(Calc)= 4.48

Help on Crystal System: Crystal System:

Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: P 41/mbc

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 3.16(1), 6.07(0.55), 3.04(0.45),

Help on Forms: Forms:

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| | Forms:( 1 2 1) ( 0 1 1) ( 0 2 1) ( 1 1 0) ( 1 0 0) ( 0 0 1) Warning: this large pop-up is very compute intensive and may not work well with some computers. | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |

Click Here for Large Trippkeite Structure Window Crystal Structure:

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| | Zemann J , Tschermaks Mineralogische und Petrographische Mitteilungen , 2 (1951) p.417-423, Formel und kristallstruktur des trippkeits, Note: coordinates of Cu and As corrected per Pertlik, 1975, Locality: Copiapo, Chile View Additional jPOWD Structure files for Trippkeite [1] | | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |

Physical Properties of Trippkeite

Help on Cleavage: Cleavage:

{100} Perfect, {110} Good

Help on Color: Color:

Greenish blue.

Help on Density: Density:

4.8

Help on Diaphaneity: Diaphaneity:

Subopaque

Help on Hardness: Hardness:

4 - Fluorite

Help on Luster: Luster:

Adamantine

Optical Properties of Trippkeite

Help on Gladstone-Dale: Gladstone-Dale:

CI meas= 0.027 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.042 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2254,KPDmeas= 0.2104,KC= 0.2164
Ncalc = 1.97 - 2.04

Help on Optical Data: Optical Data:

Uniaxial (+), w=1.9, e=2.12, bire=0.2200.

Calculated Properties of Trippkeite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=4.40 gm/cc
note: Specific Gravity of Trippkeite =4.80 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.0001107437
Boson Index = 0.9998892563

Help on Photoelectric: Photoelectric:

PETrippkeite = 48.66 barns/electron
U=PETrippkeite x rElectron Density= 213.87 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Trippkeite is Not Radioactive

Trippkeite Classification

Help on Dana Class: Dana Class:

45.01.05.01 (45)Acid and normal Antimonites, Arsenites and Phosphites

(45.01)with miscellaneous formulae

(45.01.05)Dana Group

45.01.05.01 Trippkeite CuAs2O4 P 41/mbc 4/m 2/m 2/m

Help on Strunz Class: Strunz Class:

04.JA.20 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.J - Arsenites, Antimonites, Bismuthites, Sulfites,

04.JA -Arsenites, antimonites, bismuthites; without additional anions, without H2O

04.JA.20 Kusachiite CuBi2O4 P 4/ncc 4/m 2/m 2/m

04.JA.20 Schafarzikite FeSb2O4 P 41/mbc 4/m 2/m 2/m

04.JA.20 Trippkeite CuAs2O4 P 41/mbc 4/m 2/m 2/m

Other Trippkeite Information

Help on References: References:

NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

Help on See Also: See Also:

Links to other databases for Trippkeite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

Search for Trippkeite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

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Ask about Trippkeite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Espa�ol

Print or Cut-and-Paste your Trippkeite Specimen Label here :

Trippkeite

CuAs+++2O4
Dana No: 45.01.05.01 Strunz No: 04.JA.20
Locality:

Notes: