Rosieresite Mineral Data

General Rosieresite Information

Chemical Formula:

(Pb,Cu,Al)(PO4)x•n(H2O)

Composition:

Molecular Weight = 349.14 gm

Aluminum 0.77 % Al 1.46 % Al₂O₃

Copper 5.46 % Cu 6.15 % Cu₂O

Phosphorus 8.87 % P 20.33 % P₂O₅

Hydrogen 3.46 % H 30.96 % H₂O

Lead 35.61 % Pb 38.36 % PbO

Oxygen 45.82 % O

______ ______

100.00 % 97.25 % = TOTAL OXIDE

Empirical Formula:

Pb_0.6Cu_0.3Al_0.1(PO₄)•6(H₂O)

IMA Status:

Valid Species (Pre-IMA) 1910

Locality:

Link to MinDat.org Location Data.

Name Origin:

From an abandoned copper mine at Rosiere, Carmaux, Tarn, France.

Rosieresite Crystallography

Crystal System:

Amorphous- No Crystals

Physical Properties of Rosieresite

Cleavage:

None

Color:

Yellow, Yellow, Pale brown.

Density:

2.2

Fracture:

Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.

Habit:

Stalactitic - Shaped like pendant columns as stalactites or stalagmites (e.g. calcite).

Hardness:

3-3.5 - Calcite-Copper Penny

Luster:

Vitreous - Pearly

Streak:

white

Optical Properties of Rosieresite

Gladstone-Dale:

CI meas= -0.078 (Fair) - where the CI = (1-KPDmeas/KC)
KPDmeas= 0.2273,KC= 0.2109
Ncalc = 1.46

Optical Data:

Isotropic, n=1.5.

Calculated Properties of Rosieresite

Electron Density:

Bulk Density (Electron Density)=2.09 gm/cc
note: Specific Gravity of Rosieresite =2.20 gm/cc.

Fermion Index:

Fermion Index = 0.07
Boson Index = 0.93

Photoelectric:

PE_Rosieresite= 577.15 barns/electron
U=PE_Rosieresite x rElectron Density=1,208.83 barns/cc.

Radioactivity:

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

Rosieresite Classification

Dana Class:

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

(42.13)Dana Type

(42.13.07)Dana Group

42.13.07.01 Rosieresite (Pb,Cu,Al)(PO4)x•n(H2O) None

Strunz Class:

08.DF.10 08 - PHOSPHATES, ARSENATES, VANADATES

08.D - Phosphates, etc

08.DF -With only medium-sized cations, (OH,etc.):RO4 > 3:1

08.DF.10 Bolivarite Al2(PO4)(OH)3•4-5(H2O) None

08.DF.10 Evansite Al3(PO4)(OH)6•6(H2O)(?) None

08.DF.10 Liskeardite (Al,Fe)3(AsO4)(OH)6•5(H2O) Unk Ortho

08.DF.10 Rosieresite (Pb,Cu,Al)(PO4)x•n(H2O) None

Other Rosieresite Information

References:

NAME( Ford32) PHYS. PROP.(Ford32) OPTIC PROP.(Ford32)

See Also:

Links to other databases for Rosieresite :
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 Rosieresite Specimen Label here :

Rosieresite

(Pb,Cu,Al)(PO4)x•n(H2O)
Dana No: 42.13.07.01 Strunz No: 08.DF.10
Locality:

Notes:

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