Philipsburgite Mineral Data

General Philipsburgite Information

Chemical Formula:

(Cu,Zn)6(AsO4,PO4)2(OH)6•(H2O)

Composition:

Molecular Weight = 759.97 gm

Zinc 12.91 % Zn 16.06 % ZnO

Copper 37.63 % Cu 47.10 % CuO

Arsenic 14.79 % As 22.68 % As₂O₅

Phosphorus 2.04 % P 4.67 % P₂O₅

Hydrogen 1.06 % H 9.48 % H₂O

Oxygen 31.58 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

6(Cu_0.75)6(Zn_0.25)(AsO₄)_1.5(PO₄)_0.5(OH)₆•(H₂O)

Environment:

Found in zone of secondary minerals. As analog of kipusite.

IMA Status:

Approved IMA 1985

Locality:

Black Pine mine, Flink Creek Valley, John Long Mountains, 14.5 km west of Philipsburg, Montana, USA. Link to MinDat.org Location Data.

Name Origin:

Named for the locality

Name Pronunciation:

Philipsburgite

Philipsburgite Image

Images:

Philipsburgite

Comments: Green botryoidal micro crystals of philipsburgite.
Location: Gold Hill mine, Tooele County, Utah, USA. Scale: Picture size 5 mm.
© John Veevaert

Philipsburgite Crystallography

Axial Ratios:

a:b:c =1.3402:1:1.1619

Cell Dimensions:

a = 12.33, b = 9.2, c = 10.69, Z = 4; beta = 96.92° V = 1,203.80 Den(Calc)= 4.19

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 2₁/c

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

By Intensity(I/I_o): 2.559(1), 4.05(0.9), 12.2(0.8),

Physical Properties of Philipsburgite

Cleavage:

None

Color:

Emerald green.

Density:

4.07

Diaphaneity:

Transparent to Semiopaque

Hardness:

3-4 - Calcite-Fluorite

Luminescence:

Non-fluorescent.

Luster:

Vitreous (Glassy)

Streak:

light green

Optical Properties of Philipsburgite

Gladstone-Dale:

CI meas= -0.02 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.01 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1812,KPDmeas= 0.1866,KC= 0.183
Ncalc = 1.74 - 1.77

Optical Data:

Biaxial (-), a=1.729, b=1.774, g=1.775, bire=0.0460, 2V(Calc)=16, 2V(Meas)=16. Dispersion r >> v.

Pleochroism (x):

pale green.

Pleochroism (y):

medium green.

Pleochroism (z):

medium green.

Calculated Properties of Philipsburgite

Electron Density:

Bulk Density (Electron Density)=3.98 gm/cc
note: Specific Gravity of Philipsburgite =4.19 gm/cc.

Fermion Index:

Fermion Index = 0.0054448374
Boson Index = 0.9945551626

Photoelectric:

PE_{Philipsburgite}= 33.42 barns/electron
U=PE_{Philipsburgite} x rElectron Density= 132.85 barns/cc.

Radioactivity:

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

Philipsburgite Classification

Dana Class:

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

(42.02)where (AB)3 (XO4) Zq · x(H2O)

(42.02.04)Kipushite Group

42.02.04.01 Kipushite (Cu,Zn)5Zn(PO4)2(OH)6•(H2O) P 2₁/c 2/m

42.02.04.02 Philipsburgite (Cu,Zn)6(AsO4,PO4)2(OH)6•(H2O) P 2₁/c 2/m

Strunz Class:

08.DA.35 08 - PHOSPHATES, ARSENATES, VANADATES

08.D - Phosphates, etc

08.DA -With small (and occasionally larger) cations

08.DA.35 Kipushite (Cu,Zn)5Zn(PO4)2(OH)6•(H2O) P 2₁/c 2/m

08.DA.35 Philipsburgite (Cu,Zn)6(AsO4,PO4)2(OH)6•(H2O) P 2₁/c 2/m

Other Philipsburgite Information

References:

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

See Also:

Links to other databases for Philipsburgite :
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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Ask about Philipsburgite 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 Philipsburgite Specimen Label here :

Philipsburgite

(Cu,Zn)6(AsO4,PO4)2(OH)6•(H2O)
Dana No: 42.02.04.02 Strunz No: 08.DA.35
Locality:

Notes: