General Panasqueiraite Information

Help on Chemical Formula: Chemical Formula: CaMg(PO4)(OH,F)

Help on Composition: Composition: Molecular Weight = 176.86 gm

Calcium 22.66 % Ca 31.71 % CaO

Magnesium 13.74 % Mg 22.79 % MgO

Phosphorus 17.51 % P 40.13 % P₂O₅

Hydrogen 0.43 % H 3.82 % H₂O

Oxygen 42.97 % O

Fluorine 2.69 % F 2.69 % F

- % F -1.13 % -O=F₂

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula: CaMg(PO₄)(OH)_0.75F_0.25

Help on Environment: Environment: Rare mineral in vein selvages in a hydrothermal Sn–W deposit.

Help on IMA Status: IMA Status: Approved IMA 1981

Help on Locality: Locality: Panasqueira Sn-W deposit, Portugal. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin: Named for the locality.

Help on Name Pronunciation: Name Pronunciation: Panasqueiraite + Pronunciation Say PANASQUEIRAITE

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Panasqueiraite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0..&checktime(7466,1,0,':').7904

Help on Cell Dimensions: Cell Dimensions: a = 6.535, b = 8.753, c = 6.919, Z = 4; beta = 112.33° V = 366.09 Den(Calc)= 3.21

Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/c

Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/I_o): 2.626(1), 3.02(0.86), 3.2(0.67),

Physical Properties of Panasqueiraite

Help on Cleavage: Cleavage: {010} Indistinct

Help on Color: Color: White, Pink.

Help on Density: Density: 3.27

Help on Diaphaneity: Diaphaneity: Transparent to Translucent

Help on Hardness: Hardness: 5 - Apatite

Help on Luster: Luster: Silky - Pearly

Help on Streak: Streak: white

Optical Properties of Panasqueiraite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.081 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.064 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1871,KPDmeas= 0.1837,KC= 0.1998
Ncalc = 1.64 - 1.65

Help on Optical Data: Optical Data: Biaxial (+), a=1.59, b=1.596, g=1.616, bire=0.0260, 2V(Calc)=58, 2V(Meas)=51.

Calculated Properties of Panasqueiraite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.19 gm/cc
note: Specific Gravity of Panasqueiraite =3.21 gm/cc.

Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99

Help on Photoelectric: Photoelectric: PE_{Panasqueiraite} = 3.94 barns/electron
U=PE_{Panasqueiraite} x rElectron Density= 12.60 barns/cc.

Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Panasqueiraite is Not Radioactive

Panasqueiraite Classification

Help on Dana Class: Dana Class: 41.05.06.03 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen

(41.05)where (A B)2 (XO4) Zq

(41.05.06)Tilasite Group

41.05.06.01 Tilasite CaMg(AsO4)F C 2/c 2/m

41.05.06.02 Isokite CaMg(PO4)F C 2/c 2/m

41.05.06.03 Panasqueiraite CaMg(PO4)(OH,F) C 2/c 2/m

Help on Strunz Class: Strunz Class: 08.BH.10 08 - PHOSPHATES, ARSENATES, VANADATES

08.B - Phosphates, etc. with Additional Anions, without H2O

08.BH -With medium-sized and large cations, (OH,etc.):RO4 = 1:1

08.BH.10 Durangite NaAl(AsO4)F C 2/c 2/m

08.BH.10 Isokite CaMg(PO4)F C 2/c 2/m

08.BH.10 Lacroixite NaAl(PO4)F C 2/c 2/m

08.BH.10 Maxwellite NaFe(AsO4)F Aa,A2/a Mono

08.BH.10 Panasqueiraite CaMg(PO4)(OH,F) C 2/c 2/m

08.BH.10 Tilasite CaMg(AsO4)F C 2/c 2/m

Other Panasqueiraite Information

Help on References: References: NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

Help on See Also: See Also: Links to other databases for Panasqueiraite :
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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