petrographic microscope sentence in Hindi
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- Macerals are observed under the petrographic microscope under reflected light.
- Under the petrographic microscope it has a very high relief.
- He was also the first scientist in Finland to use a petrographic microscope.
- In 1926, he developed a petrographic microscope.
- It would be glued to a slide and placed under a petrographic microscope for examination.
- Viewing under a petrographic microscope, the crystals contains a scattering of minute bubble-like inclusions.
- Michel-L�vy pioneered the use of birefringence to identify minerals in thin section with a petrographic microscope.
- In optical mineralogy, a petrographic microscope and cross-polarised light are often used to view the interference pattern.
- Related to crystal form, the quality of crystal faces is diagnostic of some minerals, especially with a petrographic microscope.
- The "'primary features of Nile silt "', as revealed by a petrographic microscope, include:
- Recognising a crenulation in a rock may require inspecting the rock with a hand-lens or petrographic microscope in thin section.
- Most commonly, rock and mineral samples are prepared as thin sections or grain mounts for study in the laboratory with a petrographic microscope.
- To observe the interference figure, true petrographic microscopes usually include an accessory called a Bertrand lens, which focuses and enlarges the figure.
- Under the petrographic microscope, a thin section of the mineral will display brilliant interference figures in greens or blues ( Moore, 1971 ).
- Petrographic microscopes are constructed with optical parts that do not add unwanted polarizing effects due to strained glass, or polarization by reflection in prisms and mirrors.
- Addition of plates between the polarizers of a petrographic microscope makes easier the optical identification of minerals in thin sections of optical indicatrices within the visible crystal sections.
- The two Nicol prisms ( occasionally referred to as " nichols " ) of the petrographic microscope have their polarizing planes oriented perpendicular to one another.
- The 2H polytype is pleochroic, meaning that the mineral changes colors ( in this case yellow and light yellow ) when viewed at different angles under a polarizing petrographic microscope.
- In addition to modifications of the microscope's optical system, petrographic microscopes allow for the insertion of specially-cut oriented filters of biaxial minerals ( the quartz wedge, order when needed.
- Its color in plane-polarized light is dark red, and it does not exhibit pleochroism, which means it does not appear to be a different color when observed at different angles under a polarizing petrographic microscope.
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