Scandiobabingtonite Mineral Data

Scandiobabingtonite Mineral Data +

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General Scandiobabingtonite Information

Chemical Formula:

Ca2(Fe++,Mn)ScSi5O14(OH)

Composition:

Molecular Weight = 562.16 gm

Calcium 14.26 % Ca 19.95 % CaO

Scandium 8.00 % Sc 12.27 % Sc₂O₃

Manganese 2.44 % Mn 3.15 % MnO

Iron 7.45 % Fe 9.59 % FeO

Silicon 24.98 % Si 53.44 % SiO₂

Hydrogen 0.18 % H 1.60 % H₂O

Oxygen 42.69 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Ca₂Fe²⁺_0.75Mn²⁺_0.25ScSi₅O₁₄(OH)

Environment:

Found in a miarolitic cavity.

IMA Status:

Approved IMA 1998 (Dana # Added)

Locality:

Montecatini quarry in the Baveno granite, near Novara, Piedmont, Italy. Link to MinDat.org Location Data.

Name Origin:

The name reflects its composition, as the scandium analogue of babingtonite.

Synonym:

ICSD 86582

IMA1993-012

Scandiobabingtonite Image

Images:

Scandiobabingtonite

Comments: Green micro crystals of scandiobabingtonite to about 0.75mm with several grayish brown ball-like micro crystals of titanite to 0.75mm scattered in a large vug.
Location: Heftetjern pegmatite, T?rdal, Drangedal, Telemark, Norway. Scale: Picture size 2.5 mm.
© Tom Loomis / Dakota Matrix

Scandiobabingtonite Crystallography

Axial Ratios:

a:b:c =0.6422:1:0.575

Cell Dimensions:

a = 7.536, b = 11.734, c = 6.748, Z = 2; alpha = 91.7°, beta = 93.86°, gamma = 104.53° V = 576.06 Den(Calc)= 3.24

Crystal System:

Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1

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

By Intensity(I/I_o): 2.895(1), 2.969(1), 2.755(0.7),

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Physical Properties of Scandiobabingtonite

Color:

Gray.

Density:

3.24

Diaphaniety:

Transparent

Hardness:

6 - Orthoclase

Luster:

Vitreous (Glassy)

Optical Properties of Scandiobabingtonite

Gladstone-Dale:

CI meas= -0.003 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.003 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2149,KPDmeas= 0.2149,KC= 0.2143

Optical Data:

Biaxial (+), a=1.686, b=1.694, g=1.709, bire=0.0230

Calculated Properties of Scandiobabingtonite

Electron Density:

r_electron=3.20 gm/cc
note: r_{Scandiobabingtonite}=3.24 gm/cc.

Fermion Index

Fermion Index = 0.01364
Boson Index = 0.98636

Photoelectric:

PE_{Scandiobabingtonite}= 6.65 barns/electron
U=PE_{Scandiobabingtonite} x r_electron= 21.28 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Scandiobabingtonite is Not Radioactive

Scandiobabingtonite Classification

Dana Class:

65.4.1.8 (65)Inosilicate Single-Width Unbranched Chains, W=1

(65.4)with chains P=5

(65.4.1)Rhodonite group

65.4.1.1 Rhodonite (Mn,Fe,Mg,Ca)SiO3 P1 1

65.4.1.2 Babingtonite Ca2(Fe,Mn)FeSi5O14(OH) P1 1

65.4.1.3 Manganbabingtonite Ca2(Mn,Fe)FeSi5O14(OH) P1 1

65.4.1.4 Nambulite (Li,Na)Mn4[Si5O14(OH)] P1 1

65.4.1.5 Natronambulite (Na,Li)Mn4[Si5O14(OH)] P1 1

65.4.1.6 Marsturite NaCaMn3[Si5O14(OH)] P1,P 1 Tri

65.4.1.7 Lithiomarsturite LiCa2Mn2HSi5O15 P1 1

65.4.1.8 Scandiobabingtonite ! Ca2(Fe,Mn)ScSi5O14(OH) P1 1

Strunz Class:

VIII/F.27-35 VIII - Silicates

VIII/F - Inosilicates (chain and band) Five chains [Si5O15]10-

VIII/F.27 - Rhodonite - Inesite series

VIII/F.27-10 Rhodonite (Mn,Fe,Mg,Ca)SiO3 P1 1

VIII/F.27-20 Babingtonite Ca2(Fe,Mn)FeSi5O14(OH) P1 1

VIII/F.27-30 Manganbabingtonite Ca2(Mn,Fe)FeSi5O14(OH) P1 1

VIII/F.27-35 Scandiobabingtonite Ca2(Fe,Mn)ScSi5O14(OH) P1 1

VIII/F.27-40 Santaclaraite CaMn4Si5O14(OH)2·(H2O) P1 1

VIII/F.27-50 Nambulite (Li,Na)Mn4[Si5O14(OH)] P1 1

VIII/F.27-60 Natronambulite (Na,Li)Mn4[Si5O14(OH)] P1 1

VIII/F.27-70 Lithiomarsturite LiCa2Mn2HSi5O15 P1 1

VIII/F.27-80 Marsturite NaCaMn3[Si5O14(OH)] P1,P 1 Tri

VIII/F.27-90 Inesite Ca2Mn7Si10O28(OH)2·5(H2O) P1 1

Other Scandiobabingtonite Information

References:

NAME( CanMin, 8/99) PHYS. PROP.(Am.Min.,Vol.83,p1330-1334,1998) OPTIC PROP.(Am.Min.,Vol.83,p1330-1334,1998)

See Also:

Links to other databases for Scandiobabingtonite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -MinDAT 6 -MinMax(Deutsch) 7 -MinMax(English) 8 -Mineralienatlas (Deutsch) 9 -QUT Mineral Atlas

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

Scandiobabingtonite

Ca2(Fe++,Mn)ScSi5O14(OH)
Dana No: 65.4.1.8 Strunz No: VIII/F.27-35
Locality:

Notes: