Nordenskioldine Mineral Data

Nordenskioldine Mineral Data +

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General Nordenskioldine Information

Chemical Formula:

CaSnB2O6

Composition:

Molecular Weight = 276.40 gm

Calcium 14.50 % Ca 20.29 % CaO

Tin 42.95 % Sn 54.52 % SnO₂

Boron 7.82 % B 25.19 % B₂O₃

Oxygen 34.73 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

CaSnB₂O₆

IMA Status:

Valid Species (Pre-IMA) 1887

Locality:

Aro, Langesundsfjord, Norway. Link to MinDat.org Location Data.

Name Origin:

Named for Nils A. E. Nordenskiöld (1832-1901), Swedish mineralogist and Arctic explorer.

Synonym:

Nordenskioeldine

Nordenskioldine Image

Images:

Click Here for Larger Nordenskioldine Image

Nordenskioldine Magnetite

Comments: Colorless to white bladed crystals of nordenski?ldine with black magnetite.
Location: P?hla-Tellerh?user Gallery, P?hla, Schwarzenberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Nordenskioldine Crystallography

Axial Ratios:

a:c = 1:3.28044

Cell Dimensions:

a = 4.853, c = 15.92, Z = 3; V = 324.71 Den(Calc)= 4.24

Crystal System:

Trigonal - RhombohedralH-M Symbol ( 3) Space Group: R 3

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

By Intensity(I/I_o): 1.804(1), 2.892(1), 3.707(0.6),

Forms:

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Forms: [ 1 0 1] [ 1 1 0] [ 0 0 1]

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Crystal Structure:

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Effenberger H , Zemann J , Neues Jahrbuch fur Mineralogie, Monatshefte , 1986 (1986) p.111-114, The detailed crystal structure of nordenskioeldine, CaSn(BO3)2, Locality: Stiepelman mine, SW Africa

Physical Properties of Nordenskioldine

Cleavage:

[0001] Perfect, [1011] Indistinct

Color:

Colorless, Yellow.

Density:

4.2

Diaphaniety:

Transparent

Habit:

Tabular - Form dimensions are thin in one direction.

Hardness:

5.5-6 - Knife Blade-Orthoclase

Luster:

Vitreous - Pearly

Optical Properties of Nordenskioldine

Gladstone-Dale:

CI meas= 0.02 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.029 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1696,KPDmeas= 0.1712,KC= 0.1747

Optical Data:

Uniaxial (-), e=1.66, w=1.778, bire=0.1180.

Calculated Properties of Nordenskioldine

Electron Density:

r_electron=3.89 gm/cc
note: r_{Nordenskioldine}=4.20 gm/cc.

Fermion Index

Fermion Index = 0.0873
Boson Index = 0.9127

Photoelectric:

PE_{Nordenskioldine}= 129.70 barns/electron
U=PE_{Nordenskioldine} x r_electron= 504.53 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Nordenskioldine is Not Radioactive

Nordenskioldine Classification

Dana Class:

24.3.3.1 (24)Borates - Anhydrous

(24.3)where (A)m (B)n [XO3]p

(24.3.3)Dana Group

24.3.3.1 Nordenskioldine CaSnB2O6 R 3 3

24.3.3.2 Tusionite MnSn(BO3)2 R 3 3

Strunz Class:

V/G.02-10 V - Nitrates, Carbonates and Borates

V/G - "Insel" borates [BO3]3- "inseln"

V/G.02 - Nordenskiöldine - Tusionite series

V/G.02-10 Nordenskioldine CaSnB2O6 R 3 3

V/G.02-20 Tusionite MnSn(BO3)2 R 3 3

Other Nordenskioldine Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Nordenskioldine :
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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Print or Cut-and-Paste your Nordenskioldine Specimen Label here :

Nordenskioldine

CaSnB2O6
Dana No: 24.3.3.1 Strunz No: V/G.02-10
Locality:

Notes: