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 % Al2 O3
Phosphorus 14.92 % P 34.18 % P2 O5
Hydrogen 0.49 % H 4.34 % H2 O
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:
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 - Pinacoidal H-M Symbol ( 1 ) Space Group: P1
X Ray Diffraction:
By Intensity(I/Io ): 3(1), 3.26(0.6), 2.94(0.55),
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:
PEJagowerite = 143.03 barns/electronU=PEJagowerite x r Electron 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 - 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
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:
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