Jagowerite Mineral Data

Jagowerite Mineral Data +

General Jagowerite Information

Chemical Formula:

BaAl2(PO4)2(OH)2

Composition:

Molecular Weight = 415.25 gm

Barium 33.07 % Ba 36.92 % BaO

Aluminum 13.00 % Al 24.55 % Al₂O₃

Phosphorus 14.92 % P 34.18 % P₂O₅

Hydrogen 0.49 % H 4.34 % H₂O

Oxygen 38.53 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

BaAl₂(PO₄)₂(OH)₂

IMA Status:

Approved IMA 1973

Locality:

Link to MinDat.org Location Data.

Synonym:

ICSD 6196

IMA1973-001

PDF 35-636

Jagowerite Image

Images:

Jagowerite

Comments: Pale green to white massive jagowerite.
Location: Hess River, Yukon Territory, Canada. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Images:

Jagowerite Penikisite

Comments: Light green crystal of jagowerite intergrown with darker green penikisite in a tetrahedrite (black) and white quartz matrix.
Location: From quartz veins cutting clays 26 km N of Hess River, Yukon Territory, Canada. Scale: Sample size 2x1 cm.
© Dave Barthelmy

Jagowerite Crystallography

Axial Ratios:

a:b:c =0.8686:1:0.7138

Cell Dimensions:

a = 6.049, b = 6.964, c = 4.971, Z = 1; alpha = 116.51°, beta = 86.06°, gamma = 112.59° V = 172.60 Den(Calc)= 3.99

Crystal System:

Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1

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

By Intensity(I/I_o): 3(1), 3.26(0.6), 2.94(0.55),

Crystal Structure:

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Meagher E P , Gibbons C S , Trotter J , American Mineralogist , 59 (1974) p.291-295, The crystal structure of jagowerite: BaAl2P2O8(OH)2

Physical Properties of Jagowerite

Cleavage:

[100] Good, [011] Good, [021] Distinct

Color:

Light green.

Density:

4.01

Hardness:

4.5 - Between Fluorite and Apatite

Luminescence:

Fluorescent.

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Jagowerite

Gladstone-Dale:

CI meas= 0.017 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.012 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1734,KPDmeas= 0.1725,KC= 0.1754

Optical Data:

Biaxial (+), a=1.672, b=1.693, g=1.71, bire=0.0380

Pleochroism (x):

colorless.

Pleochroism (y):

colorless.

Pleochroism (z):

colorless.

Calculated Properties of Jagowerite

Electron Density:

r_electron=3.73 gm/cc
note: r_Jagowerite=3.99 gm/cc.

Fermion Index

Fermion Index = 0.05912
Boson Index = 0.94088

Photoelectric:

PE_Jagowerite= 143.03 barns/electron
U=PE_Jagowerite x r_electron= 533.25 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Jagowerite is Not Radioactive

Jagowerite Classification

Dana Class:

41.10.3.1 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen

(41.10)where (A++ B++)3 (XO4)2 Zq

(41.10.3)Dana Group

41.10.3.1 Jagowerite BaAl2(PO4)2(OH)2 P1 1

Strunz Class:

VII/B.29-50 VII - Phosphates, Arsenates and Vanadates

VII/B - Waterfree phosphates with unfamiliar anions F, Cl, O, OH. cations of medium and big size: Mg, Cu, Zn, and Ca, Na, K, Ba, Pb

VII/B.29 - Bjarebyite group

VII/B.29-10 Penikisite BaMg2Al2(PO4)3(OH)3 P1 1

VII/B.29-20 Kulanite Ba(Fe,Mn,Mg)2Al2(PO4)3(OH)3 P 2₁/m 2/m

VII/B.29-30 Bjarebyite (Ba,Sr)(Mn,Fe,Mg)2Al2(PO4)3(OH)3 P 2₁/m 2/m

VII/B.29-35 Johntomaite! Ba(Fe,Ca,Mn)2Fe2(PO4)3(OH)3 P 2₁/m 2/m

VII/B.29-40 Perloffite Ba(Mn,Fe)2Fe2(PO4)3(OH)3 P 2₁/m 2/m

VII/B.29-50 Jagowerite BaAl2(PO4)2(OH)2 P1 1

VII/B.29-60 Vesignieite Cu3Ba(VO4)2(OH)2 C 2/m 2/m

VII/B.29-70 Drugmanite Pb2(Fe,Al)H(PO4)2(OH)2 P 2₁/a 2/m

VII/B.29-80 Mounanaite PbFe2(VO4)2(OH)2 P1 1

Other Jagowerite Information

References:

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

See Also:

Links to other databases for Jagowerite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 - WWW-MINCRYST 13 -École des Mines de Paris

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Jagowerite

BaAl2(PO4)2(OH)2
Dana No: 41.10.3.1 Strunz No: VII/B.29-50
Locality:

Notes: