Orickite Mineral Data

Orickite Mineral Data +

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General Orickite Information

Chemical Formula:

CuFeS2·(H2O)

Composition:

Molecular Weight = 201.54 gm

Iron 27.71 % Fe

Copper 31.53 % Cu

Hydrogen 1.00 % H

Sulfur 31.82 % S

Oxygen 7.94 % O

______

100.00 %

Empirical Formula:

CuFe²⁺S₂·(H₂O)

Environment:

Mafic alkalic diatreme.

IMA Status:

Approved IMA 1983

Locality:

Coyote Peak diatreme, 16 miles SW of Orick, Santa Cruz Co., California. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

Orickite Image

Images:

Orickite

Comments: Black and white image of a polished section showing intergrown crystals of orickite in sodalite (dark). (AmMin 68:246).
Location: Mafic alkalic diatreme at Coyote Peak near Orick, Humboldt County, California, USA. Scale: Image size 0.44 mm.
© American Mineralogist

Orickite Crystallography

Axial Ratios:

a:c = 1:1.66711

Cell Dimensions:

a = 3.695, c = 6.16, Z = 1; V = 72.84 Den(Calc)= 4.59

Crystal System:

HexagonalSpace Group: Unk

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.08(1), 3.2(0.9), 2.84(0.6),

Physical Properties of Orickite

Cleavage:

[001] Good

Color:

Brass yellow.

Density:

4.212

Diaphaniety:

Opaque

Hardness:

3.5 - Copper Penny

Luster:

Metallic

Magnetism:

Weakly magnetic

Streak:

black

Optical Properties of Orickite

RL Anisotrophism:

Strong, from grayish brown to grayish blue.

RL Pleochroism:

Weak, pale yellow to slightly deeper yellow.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Orickite in Air**
λ	R	∑ R(λ)
470 nm	34.70
546 nm	39.90
589 nm	42.80
650 nm	46.90

**Calculated Relative Intensity Colors of Orickite in Air**
Relative Intensity	0%	30%	60%	90%	100%	120%	150%	180%	210%	240%	260%
R

Calculated Properties of Orickite

Electron Density:

r_electron=4.42 gm/cc
note: r_Orickite=4.59 gm/cc.

Fermion Index

Fermion Index = 0.0083
Boson Index = 0.9917

Photoelectric:

PE_Orickite= 23.88 barns/electron
U=PE_Orickite x r_electron= 105.53 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Orickite is Not Radioactive

Orickite Classification

Dana Class:

2.14.7.1 (2)Sulfides - Including Selenides and Tellurides

(2.14)(Hydroxyl or Hydrated)

(2.14.7)Dana Group

2.14.7.1 Orickite CuFeS2·(H2O) Unk Hex

Strunz Class:

II/C.04-60 II - Sulfides and sulphosalts

II/C - Sulfides with metal: sulfur, selenium and tellurium = 1:1

II/C.04 - Chalcopyrite group, Mooihoekite - Orickite series

II/C.04-10 Mooihoekite Cu9Fe9S16 P 4₂m- 4 2m

II/C.04-20 Haycockite Cu4Fe5S8 P 222 2 2 2

II/C.04-30 Putoranite Cu1.1Fe1.2S2 P n3n 4/m 3 2/m

II/C.04-35 Isochalcopyrite* Cu8Fe9S16 Unk Cubic

II/C.04-40 Talnakhite Cu9(Fe,Ni)8S16 I 43m 4 3m

II/C.04-50 Isocubanite CuFe2S3 F m3m 4/m 3 2/m

II/C.04-60 Orickite CuFeS2·(H2O) Unk Hex

Other Orickite Information

References:

NAME( MinRec) PHYS. PROP.(Dana8) OPTIC PROP.(AntBidBlaNic1)

See Also:

Links to other databases for Orickite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

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Orickite

CuFeS2·(H2O)
Dana No: 2.14.7.1 Strunz No: II/C.04-60
Locality:

Notes: