Carrboydite Mineral Data

General Carrboydite Information

Chemical Formula:

(Ni,Cu)14Al9(SO4,CO3)6(OH)43•7(H2O)

Composition:

Molecular Weight = 2,445.61 gm

Aluminum 9.93 % Al 18.76 % Al₂O₃

Copper 10.39 % Cu 13.01 % CuO

Nickel 24.00 % Ni 30.54 % NiO

Hydrogen 2.35 % H 20.99 % H₂O

Carbon 0.98 % C 3.60 % CO₂

Sulfur 5.24 % S 13.10 % SO₃

Oxygen 47.10 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Ni₁₀Cu₄Al₉(SO₄)₄(CO₃)₂(OH)₄₃•7(H₂O)

Environment:

Surface material at a nickel mine.

IMA Status:

Approved IMA 1976

Locality:

Carr Boyd Rocks, WA, Australia. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

Carrboydite Image

Images:

Carrboydite

Comments: bluish green crusts of carrboydite.
Location: Carr-Boyd Nickel Mine, Western Australia, Australia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Carrboydite Crystallography

Axial Ratios:

a:c = 1:1.13129

Cell Dimensions:

a = 18.28, c = 20.68, Z = 4; V = 5,984.58 Den(Calc)= 2.71

Crystal System:

HexagonalSpace Group: Unk

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

By Intensity(I/I_o): 10.5(1), 5.25(0.8), 2.55(0.7),1.51(0.6), 3.48(0.6), 2.07(0.4), 2.36(0.4), 2.62(0.4),

Physical Properties of Carrboydite

Color:

Blue green, Yellow green.

Density:

2.5

Habit:

Nodular - Tuberose forms having irregular protuberances over the surface.

Habit:

Platy - Sheet forms (e.g. micas).

Streak:

greenish white

Optical Properties of Carrboydite

Gladstone-Dale:

CI meas= -0.014 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.064 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.203,KPDmeas= 0.22,KC= 0.2169
Ncalc = 1.54 - 1.59

Optical Data:

Uniaxial (-), e=1.54, w=1.56, bire=0.0200.

Calculated Properties of Carrboydite

Electron Density:

Bulk Density (Electron Density)=2.50 gm/cc
note: Specific Gravity of Carrboydite =2.50 gm/cc.

Fermion Index:

Fermion Index = 0.0034427967
Boson Index = 0.9965572033

Photoelectric:

PE_Carrboydite= 14.39 barns/electron
U=PE_Carrboydite x rElectron Density= 35.95 barns/cc.

Radioactivity:

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

Carrboydite Classification

Dana Class:

31.10.01.01 (31)Hydrated Sulfates Containing Hydroxyl or Halogen

(31.10)miscellaneous

(31.10.01)Dana Group

31.10.01.01 Carrboydite (Ni,Cu)14Al9(SO4,CO3)6(OH)43•7(H2O) Unk Hex

Strunz Class:

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

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

07.DD -With only medium-sized cations; sheets of edge-sharing octahedra

07.DD.35 Carrboydite (Ni,Cu)14Al9(SO4,CO3)6(OH)43•7(H2O) Unk Hex

07.DD.35 Glaucocerinite (Zn,Cu)5Al3(SO4)1.5(OH)16•9(H2O) Unk (HEX-R) Trig

07.DD.35 Honessite Ni6Fe2(SO4)(OH)16•4(H2O) R 3m 3 2/m

07.DD.35 Hydrowoodwardite! Cu1-xAlx(OH)2(SO4)x/2•n(H2O)with0<x<0.67andn>3x/2 R 3m 3 2/m

07.DD.35 Zincowoodwardite! [Zn1-xAlx(OH)2][(SO4)x/2(H2O)n] P 3- or R 3m 3

07.DD.35 Hydrohonessite Ni6Fe2(SO4)(OH)16•7(H2O) Unk Hex

07.DD.35 Motukoreaite Na2Mg38Al24(CO3)13(SO4)8(OH)108•56(H2O) R 3m 3 2/m

07.DD.35 Mountkeithite (Mg,Ni)11(Fe,Cr)3(SO4,CO3)3.5(OH)24•11(H2O) Unk Hex

07.DD.35 Shigaite Mn7Al4(SO4)2(OH)22•8(H2O) R 3 3

07.DD.35 Natroglaucocerinite! (Na,Zn,Cu)10Al6(SO4)3(OH)32•18(H2O)? Unk

07.DD.35 Wermlandite (Ca,Mg)Mg7(Al,Fe)2(SO4)2(OH)18•12(H2O) P 3c1 3 2/m

07.DD.35 Nikischerite! NaFe6Al3(SO4)2(OH)18(H2O)12 R 3 3

07.DD.35 Zincaluminite Zn6Al6(SO4)2(OH)26•5(H2O) Unk Hex

07.DD.35 Woodwardite Cu4Al2(SO4)(OH)12•2-4(H2O) Unk Hex

07.DD.35 Zincowoodwardite-3R! [Zn1BxAlx(OH)2][(SO4)x/2•n(H2O)],0.32<x<0.50,n=0.59 R 3m 3 2/m

07.DD.35 Zincowoodwardite-1T! [Zn1BxAlx(OH)2][(SO4)x/2•n(H2O)],x=0.33,n.0.96 P 3 3

Other Carrboydite Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)

See Also:

Links to other databases for Carrboydite :
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

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

Carrboydite

(Ni,Cu)14Al9(SO4,CO3)6(OH)43•7(H2O)
Dana No: 31.10.01.01 Strunz No: 07.DD.35
Locality:

Notes: