Jagowerite Mineral Data

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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

Environment:

In quartz veins filling tension fractures in carbonaceous argillite.

IMA Status:

Approved IMA 1973

Locality:

From a locality about 25 km north of the Hess River, N.T.S. area 105-N-7, Yukon Territory, Canada. Link to MinDat.org Location Data.

Name Origin:

Named for John Arthur Gower (1921-1972), Professor of Mineralogy, University of British Columbia, Vancouver, Canada

Name Pronunciation:

Jagowerite + Pronunciation

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, Long UV=greenish white.

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Jagowerite

Gladstone-Dale:

CI meas= 0.017 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.019 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1721,KPDmeas= 0.1725,KC= 0.1754
Ncalc = 1.7 - 1.71

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:

Bulk Density (Electron Density)=3.75 gm/cc
note: Specific Gravity of Jagowerite =4.01 gm/cc.

Fermion Index:

Fermion Index = 0.05
Boson Index = 0.95

Photoelectric:

PE_Jagowerite= 143.03 barns/electron
U=PE_Jagowerite x rElectron Density= 535.92 barns/cc.

Radioactivity:

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

Jagowerite Classification

Dana Class:

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

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

(41.10.03)Dana Group

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

Strunz Class:

08.BH.55 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.55 Jagowerite BaAl2(PO4)2(OH)2 P1 1

Other Jagowerite Information

References:

NAME( AntBidBlaNic4) 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 - Ecole des Mines de Paris
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

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Print or Cut-and-Paste your Jagowerite Specimen Label here :

Jagowerite

BaAl2(PO4)2(OH)2
Dana No: 41.10.03.01 Strunz No: 08.BH.55
Locality:

Notes: