Scandiobabingtonite Mineral Data

General Information

Chemical Formula: Ca2(Fe2+,Mn)ScSi5O14(OH)
IMA Status: Approved IMA

Classification

Dana Class: 78.0.0.0 (78)Unclassified Silicate Minerals (78.0)Without Dana Classification Numbers (Unknown)

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
Crystal System: Triclinic - Pinacoidal H-M Symbol ( -1) Space Group: P1-
X Ray Diffraction: By Intensity(I/Io): 2.895(1) 2.969(1) 2.755(0.7)

Physical Properties

Color: gray.
Density: 3.24
Diaphaniety: Transparent
Hardness: 6 - Orthoclase
Luster: Vitreous (Glassy)

Optical Properties

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

Other Information

References: PHYS. PROP.(Am.Min.,Vol.83,p1330-1334,1998) OPTIC PROP.(Am.Min.,Vol.83,p1330-1334,1998)
See Also: Frederic Biret
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