Twenty-nine representative samples were examined in thin sections using
polarizing microscope. Besides, eight of these petrographically investigated samples were analyzed for major and trace elements using XRF.
The image above shows three slices of HED meteorites as viewed through a
polarizing microscope. The slices share a common mineralogy, but their dissimilar textures indicate that they originated in different parts of Vesta's crust and surface and crystallized at different rates.
A
polarizing microscope (Axio Scope A1 pol, Carl Zeiss, Germany) was used to characterize the optical microstructure of samples.
Inoue and collaborators further improved the sensitivity and resolution of the
polarizing microscope by adding polarization rectifiers, which counteracted the systematic polarization distortions of high-resolution objective and condenser lenses (Inoue, 1952b: Inoue and Hyde, 1957).
Suspecting renal amyloidosis secondary to TB, the slides were sent for examination under
polarizing microscope, which showed the absence of apple-green birefringence in the slides pretreated with permanganate solution and, hence, confirmed the diagnosis of secondary renal amyloidosis.
As in the first edition, they emphasize the value and importance of the
polarizing microscope and related techniques.
The course deals in preparation of polished ore sections, principals of reflected light
polarizing microscope, optical properties of ore minerals, common ore texture and their significance, and paragenetic studies.
Through the use of a
polarizing microscope, fiber types can be identified and compared to possible sources of such contamination, such as tack cloths, wipe rags, filters, paper products, clothing, etc.
The lesion showed rhomboid-shaped and blunt-ended crystals (black arrows) with weak positive birefringence under
polarizing microscope in the sections stained with the Shidham method (Figure 2, D and H).
Even though it is a relatively old technique and has been replaced by microprobes and X-ray methods in the hands of professionals, the use of a
polarizing microscope by amateur mineralogists is a very powerful technique.