UM1990-64-SiO:BNa
Valid as an unnamed mineral
This page is currently not sponsored. Click here to sponsor this page.
Formula:
NaBSiO4
Colour:
colorless, white, pink, pale blue
Lustre:
Vitreous
Specific Gravity:
2.86
Crystal System:
Monoclinic
Dimorph of:
Formerly known as MSH UK53.
Its pseudohexagonal crystals (striated along elongation) and botryoidal aggregates, balls, and radiating clusters of microscopically twinned prismatic grain, were found in sodalitic xenoliths.
Its pseudohexagonal crystals (striated along elongation) and botryoidal aggregates, balls, and radiating clusters of microscopically twinned prismatic grain, were found in sodalitic xenoliths.
Unique Identifiers
Mindat ID:
27632
Long-form identifier:
mindat:1:1:27632:6
Similar Names
| UM1990-88-SiO:BNa | NaBSiO4 |
IMA Classification of UM1990-64-SiO:BNa
IMA status notes:
Unnamed (probably valid)
Physical Properties of UM1990-64-SiO:BNa
Vitreous
Transparency:
Transparent, Translucent
Colour:
Colorless, white, pink, pale blue
Density:
2.86 g/cm3 (Measured)
Chemistry of UM1990-64-SiO:BNa
Mindat Formula:
NaBSiO4
Element Weights:
Elements listed:
Crystallography of UM1990-64-SiO:BNa
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 8.001(1) Å, b = 7.693(2) Å, c = 13.885(6) Å
β = 89.80(2)°
β = 89.80(2)°
Ratio:
a:b:c = 1.04 : 1 : 1.805
Unit Cell V:
854.64 ų (Calculated from Unit Cell)
Comment:
Space group is P21/n
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 4.34 Å | (60) |
| 3.848 Å | (70) |
| 2.778 Å | (100) |
| 2.314 Å | (50) |
| 2.217 Å | (60) |
| 1.926 Å | (40) |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for UM1990-64-SiO:BNa
mindat.org URL:
https://www.mindat.org/min-27632.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
Mineral Dealers:
References for UM1990-64-SiO:BNa
Reference List:
Graetsch, H. A., Schreyer, W. (2005) RIETVELD REFINEMENT OF SYNTHETIC MONOCLINIC NaBSiO4. The Canadian Mineralogist, 43 (2) 759-767 doi:10.2113/gscanmin.43.2.759 ("A naturally occurring counterpart could be the unnamed mineral UK53 from Mont Saint-Hilaire")
