Goldquarryite Mineral Data

General Goldquarryite Information

Chemical Formula:

(Cu,[ ])(Cd,Ca)2Al3(PO4)4F2(H2O)10{(H2O,F)}2

Composition:

Molecular Weight = 978.39 gm

Potassium 0.16 % K 0.19 % K₂O

Calcium 0.90 % Ca 1.26 % CaO

Aluminum 8.05 % Al 15.22 % Al₂O₃

Vanadium 0.05 % V 0.08 % V₂O₃

Zinc 0.07 % Zn 0.08 % ZnO

Cadmium 22.98 % Cd 26.25 % CdO

Copper 4.29 % Cu 4.83 % Cu₂O

Nickel 0.06 % Ni 0.08 % NiO

Phosphorus 12.25 % P 28.07 % P₂O₅

Hydrogen 2.48 % H 22.21 % H₂O

Oxygen 45.04 % O

Fluorine 3.67 % F 3.67 % F

- % F -1.55 % -O=F₂

______ ______

100.00 % 100.38 % = TOTAL OXIDE

Empirical Formula:

Cu_0.66Ni_0.01Zn_0.01Cd₂Ca_0.22K_0.04Al_2.92V³⁺_0.01(PO₄)_3.87F_1.89(H₂O)_12.06

Environment:

Late-stage supergene mineral in a brecciated jasperoid host rock cemented by silica.

IMA Status:

Approved IMA 2004 (Dana # Added)

Locality:

5,425-foot bench of the Gold Quarry mine, Eureka County, Nevada, USA. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

Synonym:

IMA2001-058

Goldquarryite Image

Images:

Goldquarryite

Comments: Single crystal of goldquarryite.
Location: Gold Quarry mine, Eureka County, Nevada, USA.. Scale: Crystal length 0.5 mm.
© Thomas Witzke / Abraxas-Verlag

Goldquarryite Crystallography

Axial Ratios:

a:b:c =0.7473:1:1.1135

Cell Dimensions:

a = 6.787, b = 9.082, c = 10.113, Z = 1; alpha = 101.4°, beta = 104.27°, gamma = 102.51° V = 578.15 Den(Calc)= 2.81

Crystal System:

Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: P1

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

By Intensity(I/I_o): 9.433(1)(001), 2.818(0.5)(022), 2.896(0.3)(211), 3.01(0.3)(212), 3.173(0.3)(113), 3.7(0.3)(022), 4.726(

Forms:

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Forms: ( 0 1 0) ( 1 0 0) ( 0 0 1)

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Physical Properties of Goldquarryite

Cleavage:

None

Color:

Pale blue, Bluish gray.

Density:

2.78

Diaphaneity:

Transparent to Translucent

Fracture:

Brittle - Irregular - Very brittle fracture producing irregular fragments

Habit:

Aggregates - Made of numerous individual crystals or clusters.

Habit:

Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)

Hardness:

3-4 - Calcite-Fluorite

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Goldquarryite

Gladstone-Dale:

CI meas= 0.013 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.04 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2006,KPDmeas= 0.2064,KC= 0.209
Ncalc = 1.58 - 1.6

Optical Data:

Biaxial (+), a=1.57, b=1.573, g=1.578, bire=0.0080, 2V(Calc)=76, 2V(Meas)=~30. Dispersion r < v strong.

Calculated Properties of Goldquarryite

Electron Density:

Bulk Density (Electron Density)=2.72 gm/cc
note: Specific Gravity of Goldquarryite =2.78 gm/cc.

Fermion Index:

Fermion Index = 0.05
Boson Index = 0.95

Photoelectric:

PE_{Goldquarryite}= 59.57 barns/electron
U=PE_{Goldquarryite} x r_electron= 162.02 barns/cc.

Radioactivity:

GRapi = 2.24 (Gamma Ray American Petroleum Institute Units)
Concentration of Goldquarryite per GRapi unit = 44.72 (%)

Estimated Radioactivity from Goldquarryite - barely detectable

Goldquarryite Classification

Dana Class:

42.10.05.01 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen

(42.10)where (AB)3 (XO4)2 Zq ï¿½ x(H2O)

(42.10.05)Dana Group

42.10.05.01 Goldquarryite! (Cu,[])(Cd,Ca)2Al3(PO4)4F2(H2O)10{(H2O,F)}2 P1 1

Strunz Class:

08.DB.65 08 - PHOSPHATES, ARSENATES, VANADATES

08.D - Phosphates, etc

08.DB -With only medium-sized cations, (OH, etc.):RO4 < 1:1

08.DB.65 Goldquarryite! (Cu,[])(Cd,Ca)2Al3(PO4)4F2(H2O)10{(H2O,F)}2 P1 1

Other Goldquarryite Information

References:

NAME( MinRec, 34:237) PHYS. PROP.(MinRec, 34:237) OPTIC PROP.(MinRec, 34:237)

See Also:

Links to other databases for Goldquarryite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (UofA)
7 - MinDAT
8 - Mineralienatlas (Deutsch)
9 - Online Mineral Museum
10 - QUT Mineral Atlas
11 - Ruff.Info

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Goldquarryite

(Cu,[ ])(Cd,Ca)2Al3(PO4)4F2(H2O)10{(H2O,F)}2
Dana No: 42.10.05.01 Strunz No: 08.DB.65
Locality:

Notes:

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