Dispersion Staining, Darkfield
In the 1940's an Industrial Hygienst by the name of G. C. Crossmon developed the
use of darkfield dispersion staining for the analysis of quartz in dust samples. This technique
was further refined by R. G Speight in the 1970's by using a more restricked cone of light from
the condenser.
Match at 589 nanometers wavelength
Match at 540 nanometers wavelength, Chrysotile Asbestos Parallel to length
Match at 620 nanometers wavelength, Chrysotile Asbestos Perpendicular to length
Match at 440 nanometers wavelength, Amosite Asbestos Parallel to Length, Anthophyllite Asbestos Parallel to Length,
Tremolite Asbestos Parallel to Length
Match at 650 nanometers wavelength, Amosite Asbestos Perpendicular to Length, Anthyophyllite Asbestos Perpendicular to
Length, Tremolite Asbestos Perpendicular to Length (660)
Match at 670 nanometers wavelength; the colors are much more brilliant with the 10X objective.
Match at 530 nanometers wavelength
Match at 490 nanometers wavelength; the colors are much more brilliant with the 10X objective.
Match at 460 nanometers wavelength; the colors are much more brilliant with the 10X objective.
|
