Kulanite Mineral Data
General Kulanite Information
Chemical Formula:
Ba(Fe++,Mn,Mg)2Al2(PO4)3(OH)3
Composition:
Molecular Weight = 637.65 gm
Barium 21.54 % Ba 24.05 % BaO
Magnesium 0.76 % Mg 1.26 % MgO
Manganese 5.17 % Mn 6.67 % MnO
Aluminum 8.46 % Al 15.99 % Al2 O3
Iron 11.39 % Fe 14.65 % FeO
Phosphorus 14.57 % P 33.39 % P2 O5
Hydrogen 0.47 % H 4.24 % H2 O
Oxygen 37.64 % O
______ ______
100.00 % 100.25 % = TOTAL OXIDE
Empirical Formula:
BaFe2+ 1.3 Mn2+ 0.6 Mg0.2 Al2 (PO4 )3 (OH)3
Environment:
Cavities in phosphate-rich shales. Forms a series with penikisite.
IMA Status:
Approved IMA 1976
Locality:
Rapid Creek (Cross Cut Creek), Big Fish River, Yukon Territories, Canada. Link to MinDat.org Location Data.
Name Origin:
Named for Alan Kulan (1921-1977), prospector who found the first specimen.
Name Pronunciation:
Kulanite
Synonym:
ICSD 79136
IMA1975-012
PDF 29-170
Kulanite Image
Images:
Kulanite
Comments: White apatite crystals to 0.5 cm in length and abundant, bladed, deep olive green crystals (see inset image) of kulanite.
Location: Rapid Creek, Yukon Territory, Canada.
Scale: 4.3 x 3.2 cm.
© John Veevaert
Kulanite Crystallography
Axial Ratios:
a:b:c =0.7465:1:0.4079
Cell Dimensions:
a = 9.014, b = 12.074, c = 4.926, Z = 2; beta = 100.48° V = 527.18 Den(Calc)= 4.02
Crystal System:
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21 /m
X Ray Diffraction:
By Intensity(I/Io ): 3.108(1), 2.927(0.8), 3.044(0.7),
Physical Properties of Kulanite
Cleavage:
{010} Good, {100} Good
Color:
Blue, Blue green, Green, Black green.
Density:
3.91
Diaphaneity:
Transparent to Translucent
Habit:
Rosette - Bundled tabular aggregates resembling rose flower petals.
Habit:
Tabular - Form dimensions are thin in one direction.
Hardness:
4 - Fluorite
Luminescence:
Non-fluorescent.
Luster:
Vitreous - Adamantine
Streak:
greenish white
Optical Properties of Kulanite
Gladstone-Dale:
CI meas = 0.005 (Superior) - where the CI = (1-KPDmeas /KC ) CI calc = 0.032 (Excellent) - where the CI = (1-KPDcalc /KC )
KPDcalc = 0.1767,KPDmeas = 0.1817,KC = 0.1826 Ncalc = 1.71 - 1.73
Optical Data:
Biaxial (+), a=1.703, b=1.705, g=1.723, bire=0.0200, 2V(Calc)=38, 2V(Meas)=32. Dispersion r >> v strong.
Pleochroism (x):
brown green.
Pleochroism (y):
green.
Pleochroism (z):
pale brown.
Calculated Properties of Kulanite
Electron Density:
Bulk Density (Electron Density)=3.69 gm/cc note: Specific Gravity of Kulanite =3.91 gm/cc.
Fermion Index:
Fermion Index = 0.04 Boson Index = 0.96
Photoelectric:
PEKulanite = 97.24 barns/electronU=PEKulanite x r Electron Density= 359.18 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Kulanite is Not Radioactive
Kulanite Classification
Dana Class:
41.09.01.01 (41) Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
(41.09) where (A B)5 (XO4)3 Zq
(41.09.01) Kulanite Group
41.09.01.01 Kulanite Ba(Fe,Mn,Mg)2Al2(PO4)3(OH)3 P 21 /m 2/m
41.09.01.02 Penikisite BaMg2Al2(PO4)3(OH)3 P1 1
41.09.01.03 Bjarebyite (Ba,Sr)(Mn,Fe,Mg)2Al2(PO4)3(OH)3 P 21 /m 2/m
41.09.01.04 Perloffite Ba(Mn,Fe)2Fe2(PO4)3(OH)3 P 21 /m 2/m
41.09.01.05 Johntomaite ! Ba(Fe,Ca,Mn)2Fe2(PO4)3(OH)3 P 21 /m 2/m
Strunz Class:
08.BH.20 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.20 Bjarebyite (Ba,Sr)(Mn,Fe,Mg)2Al2(PO4)3(OH)3 P 21 /m 2/m
08.BH.20 Kulanite Ba(Fe,Mn,Mg)2Al2(PO4)3(OH)3 P 21 /m 2/m
08.BH.20 Penikisite BaMg2Al2(PO4)3(OH)3 P1 1
08.BH.20 Perloffite Ba(Mn,Fe)2Fe2(PO4)3(OH)3 P 21 /m 2/m
08.BH.20 Johntomaite ! Ba(Fe,Ca,Mn)2Fe2(PO4)3(OH)3 P 21 /m 2/m
Other Kulanite Information
References:
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)
See Also:
Links to other databases for Kulanite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info
16 - WWW-MINCRYST
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Kulanite
Ba(Fe++,Mn,Mg)2Al2(PO4)3(OH)3
Dana No: 41.09.01.01 Strunz No: 08.BH.20
Locality:
Notes:
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