Cuprocopiapite Mineral Data

[Minerals] [Gems] [Sale Items] [Gold Rings] [Big Stuff] [Main Page]
Shop early for Holiday Season and get the best stuff.
You can put it on layaway for up to six weeks!

General Cuprocopiapite Information

Chemical Formula:

CuFe+++4(SO4)6(OH)2•20(H2O)

Composition:

Molecular Weight = 1,257.64 gm

Iron 17.76 % Fe 25.40 % Fe₂O₃

Copper 5.05 % Cu 6.32 % CuO

Hydrogen 3.37 % H 30.08 % H₂O

Sulfur 15.30 % S 38.20 % SO₃

Oxygen 58.52 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

CuFe³⁺₄(SO₄)₆(OH)₂•20(H₂O)

Environment:

Secondary mineral probably formed by reaction between copiapite and copper sulfate-bearing solutions, preserved in arid climates.

IMA Status:

Valid Species (Pre-IMA) 1938

Locality:

Chuquicamata and at Quetena, west of Calama, Antofagasta, Chile. Link to MinDat.org Location Data.

Name Origin:

Named as the cuprian member of the copiapite group.

Cuprocopiapite Image

Images:

Cuprocopiapite

Comments: Grayish green crusts of cuprocopiapite on gypsum.
Location: Copper Queen Mine, Double Mountain Fork of Brazois River, Stonewall County, Texas, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Cuprocopiapite Crystallography

Axial Ratios:

a:b:c =0.4035:1:0.4002

Cell Dimensions:

a = 7.34, b = 18.19, c = 7.28, Z = 1; alpha = 93.85°, beta = 101.5°, gamma = 99.33° V = 937.75 Den(Calc)= 2.23

Crystal System:

Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1

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

By Intensity(I/I_o): 3.56(1), 8.81(0.8), 5.82(0.5),

Physical Properties of Cuprocopiapite

Cleavage:

{010} Perfect

Color:

Greenish yellow, Yellow, Orange.

Density:

2.08 - 2.17, Average = 2.12

Diaphaneity:

Transparent to Translucent

Hardness:

2.5-3 - Finger Nail-Calcite

Luster:

Pearly

Streak:

light yellow

Optical Properties of Cuprocopiapite

Gladstone-Dale:

CI meas= -0.055 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= -0.005 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.262,KPDmeas= 0.275,KC= 0.2606
Ncalc = 1.54 - 1.58

Optical Data:

Biaxial (+), a=1.558, b=1.575, g=1.62, bire=0.0620, 2V(Calc)=66, 2V(Meas)=63.

Calculated Properties of Cuprocopiapite

Electron Density:

Bulk Density (Electron Density)=2.27 gm/cc
note: Specific Gravity of Cuprocopiapite =2.23 gm/cc.

Fermion Index:

Fermion Index = 0.0051989709
Boson Index = 0.9948010291

Photoelectric:

PE_{Cuprocopiapite}= 8.21 barns/electron
U=PE_{Cuprocopiapite} x rElectron Density= 18.60 barns/cc.

Radioactivity:

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

Cuprocopiapite Classification

Dana Class:

31.10.05.03 (31)Hydrated Sulfates Containing Hydroxyl or Halogen

(31.10)miscellaneous

(31.10.05)Copiapite Group

31.10.05.01 Copiapite FeFe4(SO4)6(OH)2•20(H2O) P1 1

31.10.05.02 Magnesiocopiapite MgFe4(SO4)6(OH)2•20(H2O) P1 1

31.10.05.03 Cuprocopiapite CuFe4(SO4)6(OH)2•20(H2O) P1 1

31.10.05.04 Ferricopiapite Fe2/3Fe4(SO4)6(OH)2•20(H2O) P1 1

31.10.05.05 Calciocopiapite CaFe4(SO4)6(OH)2•19(H2O) P1 1

31.10.05.06 Zincocopiapite ZnFe4(SO4)6(OH)2•18(H2O) P1 1

31.10.05.07 Aluminocopiapite Al2/3Fe4(SO4)6O(OH)2•20(H2O) P1 1

Strunz Class:

07.DB.35 07 - SULFATES (SELENATES, TELLURATES)

07.D - Sulfates (selenates, etc.) with additional anions, with H2O

07.DB -With only medium-sized cations; insular octahedra and finite groups

07.DB.35 Aluminocopiapite Al2/3Fe4(SO4)6O(OH)2•20(H2O) P1 1

07.DB.35 Copiapite FeFe4(SO4)6(OH)2•20(H2O) P1 1

07.DB.35 Calciocopiapite CaFe4(SO4)6(OH)2•19(H2O) P1 1

07.DB.35 Cuprocopiapite CuFe4(SO4)6(OH)2•20(H2O) P1 1

07.DB.35 Ferricopiapite Fe2/3Fe4(SO4)6(OH)2•20(H2O) P1 1

07.DB.35 Magnesiocopiapite MgFe4(SO4)6(OH)2•20(H2O) P1 1

07.DB.35 Zincocopiapite ZnFe4(SO4)6(OH)2•18(H2O) P1 1

Other Cuprocopiapite Information

References:

NAME( AntBidBlaNic5) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

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

Search for Cuprocopiapite using:

[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Cuprocopiapite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Desert Winds Gems and Minerals

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Cuprocopiapite Mineral Data :

Ask about Cuprocopiapite 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 Español

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

Cuprocopiapite

CuFe+++4(SO4)6(OH)2•20(H2O)
Dana No: 31.10.05.03 Strunz No: 07.DB.35
Locality:

Notes: