Olenite Mineral Data
General Olenite Information
Chemical Formula:
NaAl3Al6(BO3)3(Si6O18)(O,OH)4
Composition:
Molecular Weight = 963.76 gm
Sodium 2.39 % Na 3.22 % Na2 O
Aluminum 25.20 % Al 47.61 % Al2 O3
Silicon 17.49 % Si 37.41 % SiO2
Boron 3.36 % B 10.84 % B2 O3
Hydrogen 0.10 % H 0.93 % H2 O
Oxygen 51.46 % O
______ ______
100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:
NaAl9 (BO3 )3 Si6 O21 (OH)
Environment:
Aluminum-rich tourmaline. Forms a series with elbaite.
IMA Status:
Approved IMA 1986 (Dana # Changed)
Locality:
Decembrist pegmatite field, Olenik River Basin, Russia. Link to MinDat.org Location Data.
Name Origin:
Named for the locality.
Name Pronunciation:
Olenite
Synonym:
ICSD 89900
Olenite - (61.3.1.7)
PDF 39-336
Tourmaline
Olenite Image
Images:
Olenite
Comments: Colorless, boron-rich crystal of Olenite in quartz.
Location: Koralpe, Styria, Austria.
Scale: Crystal size 3 cm.
© Andreas Ertl / Institut für Mineralogie und Kristallographie
Olenite Crystallography
Axial Ratios:
a:c = 1:0.44842
Cell Dimensions:
a = 15.802, c = 7.086, Z = 3; V = 1,532.34 Den(Calc)= 3.13
Crystal System:
Trigonal - Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
X Ray Diffraction:
By Intensity(I/Io ): 2.551(1), 3.43(0.8), 3.95(0.7),
Physical Properties of Olenite
Cleavage:
None
Color:
Light pink.
Density:
3.01
Diaphaneity:
Translucent
Habit:
Acicular - Occurs as needle-like crystals.
Habit:
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Hardness:
7 - Quartz
Luminescence:
Non-fluorescent.
Luster:
Vitreous - Greasy
Streak:
white
Optical Properties of Olenite
Dichroism (e):
pinkish yellow.
Dichroism (w):
bright pink.
Gladstone-Dale:
CI meas = -0.025 (Excellent) - where the CI = (1-KPDmeas /KC ) CI calc = 0.014 (Superior) - where the CI = (1-KPDcalc /KC )
KPDcalc = 0.2059,KPDmeas = 0.2141,KC = 0.2089 Ncalc = 1.63 - 1.65
Optical Data:
Uniaxial (-), e=1.635, w=1.654, bire=0.0190.
Calculated Properties of Olenite
Electron Density:
Bulk Density (Electron Density)=3.09 gm/cc note: Specific Gravity of Olenite =3.13 gm/cc.
Fermion Index:
Fermion Index = 0.01 Boson Index = 0.99
Photoelectric:
PEOlenite = 1.49 barns/electronU=PEOlenite x r Electron Density= 4.59 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Olenite is Not Radioactive
Olenite Classification
Dana Class:
61.03d.01.07 (61) Cyclosilicate Six-Membered Rings
(61.03d) with borate groups (Lithian Tourmaline Subgroup)
(61.03d.01) Elbaite Subgroup
61.03d.01.07 Olenite ! NaAl3Al6(BO3)3(Si6O18)(O,OH)4 R 3m 3m
61.03d.01.08 Elbaite ! Na(Li,Al)3Al6(BO3)3Si6O18(OH)4 R 3m 3m
Strunz Class:
09.CK.05 09 - SILICATES (Germanates)
09.C - Cyclosilicates
09.CK -[Si6O18]12- 6-membered single rings, with insular complex anions
09.CK.05 Chromdravite ! NaMg3(Cr,Fe)6(BO3)3Si6O18(OH)4 R 3m 3m
09.CK.05 Feruvite ! (Ca,Na)(Fe,Mg,Ti)3(Al,Mg,Fe)6(BO3)3Si6O18(OH)4 R 3m 3m
09.CK.05 Dravite NaMg3Al6(BO3)3Si6O18(OH)4 R 3m 3m
09.CK.05 Buergerite ! NaFe3Al6(BO3)3Si6O21F R 3m 3m
09.CK.05 Foitite ! []Na<0.5(Fe,Al)3Al6Si6O18(BO3)3(OH)4 R 3m 3m
09.CK.05 Liddicoatite ! Ca(Li,Al)3Al6(BO3)3Si6O18(O,OH,F)4 R 3m 3m
09.CK.05 Elbaite Na(Li,Al)3Al6(BO3)3Si6O18(OH)4 R 3m 3m
09.CK.05 Rossmanite ! []LiAl2Al6(Si6O18)(BO3)3(OH)4 R 3m 3m
09.CK.05 Olenite ! NaAl3Al6(BO3)3(Si6O18)(O,OH)4 R 3m 3m
09.CK.05 Povondraite ! (Na,K)(Fe,Fe)3(Fe,Mg,Al)6(BO3)3Si6O18(OH)4 R 3m 3m
09.CK.05 Schorl NaFe3Al6(BO3)3Si6O18(OH)4 R 3m 3m
09.CK.05 Uvite (Ca,Na)(Mg,Fe)3Al5Mg(BO3)3Si6O18(OH,F)4 R 3m 3m
09.CK.05 Vanadiumdravite ! NaMg3V6(Si6O18)(BO3)3(OH)4 R 3m 3m
09.CK.05 Magnesiofoitite ! [](Mg2Al)Al6(Si6O18)(BO3)3(OH)4 R 3m 3m
09.CK.05 Hydroxyuvite ! CaMg3(Al5Mg)(Si6O18)(BO3)3(OH)3(OH) R 3m 3m
09.CK.05 Schorl-(F) ! NaFe3Al6Si6O18)(BO3)3(OH)3(F,OH) R 3m 3m
Other Olenite Information
References:
NAME( Dana8) PHYS. PROP.(Am.Min.,Vol.73,p441,1988) OPTIC PROP.(Am.Min.,Vol.73,p441,1988)
See Also:
Links to other databases for Olenite :
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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Olenite
NaAl3Al6(BO3)3(Si6O18)(O,OH)4
Dana No: 61.03d.01.07 Strunz No: 09.CK.05
Locality:
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