Carrboydite Mineral Data

Carrboydite Mineral Data

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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

Optical Data:

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

Calculated Properties of Carrboydite

Electron Density:

r_electron=2.50 gm/cc
note: r_Carrboydite=2.50 gm/cc.

Fermion Index

Fermion Index = 0.00344
Boson Index = 0.99656

Photoelectric:

PE_Carrboydite= 14.39 barns/electron
U=PE_Carrboydite x r_electron= 35.95 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Carrboydite is Not Radioactive

Carrboydite Classification

Dana Class:

31.10.1.1 (31)Hydrated Sulfates Containing Hydroxyl or Halogen

(31.10)miscellaneous

(31.10.1)Dana Group

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

Strunz Class:

VI/D.08-90 VI - Sulfates,Chromates,Molybdates and Tungstates

VI/D - Water-bearing sulfates with unfamiliar anions. cations of medium size

VI/D.08 - Spangolite - Glaucocerinite series

VI/D.08-05 Bechererite! (Zn,Cu)6Zn2(OH)13[(S,Si)(O,OH)4]2 P 3 3

VI/D.08-10 Spangolite Cu6Al(SO4)(OH)12Cl·3(H2O) P 3₁c 3m

VI/D.08-20 Cyanotrichite Cu4Al2(SO4)(OH)12·2(H2O) Unk Ortho

VI/D.08-30 Carbonate-cyanotrichite Cu4Al2(CO3,SO4)(OH)12·2(H2O) Unk Ortho

VI/D.08-35 Camerolaite Cu4Al2[HSbO4,SO4](OH)10(CO3)·2(H2O) P 2₁ ? 2

VI/D.08-40 Woodwardite Cu4Al2(SO4)(OH)12·2-4(H2O) Unk Hex

VI/D.08-42 Hydrowoodwardite! Cu1-xAlx(OH)2(SO4)x/2·n(H2O)with0<x<0.67andn>3x/2 R 3m 3 2/m

VI/D.08-45 Zincowoodwardite! [Zn1-xAlx(OH)2][(SO4)x/2(H2O)n] P 3- or R 3m 3

VI/D.08-45* Zincowoodwardite-1T! [Zn1BxAlx(OH)2][(SO4)x/2·n(H2O)],x=0.33,n.0.96 P 3 3

VI/D.08-45** Zincowoodwardite-3R! [Zn1BxAlx(OH)2][(SO4)x/2·n(H2O)],0.32<x<0.50,n=0.59 R 3m 3 2/m

VI/D.08-50 Chalcoalumite CuAl4(SO4)(OH)12·3(H2O) P 2₁ 2

VI/D.08-60 Nickelalumite (Ni,Cu)Al4[(SO4),(NO3)2](OH)12·3(H2O) P 2₁ 2

VI/D.08-70 Mbobomkulite (Ni,Cu)Al4(NO3,SO4)2(OH)12·3(H2O) P 2₁ 2

VI/D.08-80 Hydrombobomkulite (Ni,Cu)Al4(NO3,SO4)2(OH)12·14(H2O) Unk Mono

VI/D.08-90 Carrboydite (Ni,Cu)14Al9(SO4,CO3)6(OH)43·7(H2O) Unk Hex

VI/D.08-100 Zincaluminite Zn6Al6(SO4)2(OH)26·5(H2O) Unk Hex

VI/D.08-110 Glaucocerinite (Zn,Cu)5Al3(SO4)1.5(OH)16·9(H2O) Unk (HEX-R) Trig

Other Carrboydite Information

References:

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

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Carrboydite

(Ni,Cu)14Al9(SO4,CO3)6(OH)43·7(H2O)
Dana No: 31.10.1.1 Strunz No: VI/D.08-90
Locality:

Notes: