Radium-bearing Barite
A variety of Baryte
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About Radium-bearing Barite
Formula:
(Ba,Ra)SO4
Colour:
White
Lustre:
Vitreous
Hardness:
3 - 3½
Crystal System:
Orthorhombic
Name:
From radium replacing barium and from the Greek, baryos, "heavy."
A "variety" of baryte containing trace amounts of radium.
The activity of 226Ra in the material from Ohře Rift area, Czech Republic, may reach 8 Bq/g. Scaly precipitates on oil industry equipment may show a radioactivity as high as 103 Bq/g (Ulrych et al., 2007).
See also under Hokutolite.
The activity of 226Ra in the material from Ohře Rift area, Czech Republic, may reach 8 Bq/g. Scaly precipitates on oil industry equipment may show a radioactivity as high as 103 Bq/g (Ulrych et al., 2007).
See also under Hokutolite.
Unique Identifiers
Mindat ID:
7267 (as Radium-bearing Barite)
549 (as Baryte)
549 (as Baryte)
Long-form identifier:
mindat:1:1:7267:6 (as Radium-bearing Barite)
mindat:1:1:549:0 (as Baryte)
mindat:1:1:549:0 (as Baryte)
Physical Properties of Radium-bearing Barite
Optical Data of Radium-bearing Barite
Type:
Biaxial (+)
RI values:
nα = 1.634 - 1.637 nβ = 1.6355 - 1.638 nγ = 1.646 - 1.648
2V:
Measured: 36° to 40°, Calculated: 36° to 42°
Max. Birefringence:
δ = 0.011 - 0.012
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.
Surface Relief:
Moderate
Dispersion:
weak
Chemistry of Radium-bearing Barite
Mindat Formula:
(Ba,Ra)SO4
Element Weights:
Elements listed:
Crystallography of Radium-bearing Barite
Crystal System:
Orthorhombic
Synonyms of Radium-bearing Barite
Other Language Names for Radium-bearing Barite
German:Radiobarit
Radiobaryt
Radiobaryt
Spanish:Radiobarita
Common Associates
Associated Minerals Based on Photo Data:
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 Radium-bearing Barite
mindat.org URL:
https://www.mindat.org/min-7267.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
References for Radium-bearing Barite
Reference List:
Lahošť, Teplice District, Ústí nad Labem Region, Czech Republic