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Petrographic microscope

Index Petrographic microscope

A petrographic microscope is a type of optical microscope used in petrology and optical mineralogy to identify rocks and minerals in thin sections. [1]

17 relations: Birefringence, Conoscopic interference pattern, Conoscopy, Isotropy, Mineral, Nicol prism, Optical microscope, Optical mineralogy, Petrography, Petrology, Phase telescope, Polarized light microscopy, Polarizer, Rock (geology), Thin section, Vernier scale, Waveplate.

Birefringence

Birefringence is the optical property of a material having a refractive index that depends on the polarization and propagation direction of light.

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Conoscopic interference pattern

A conoscopic interference pattern or interference figure is a pattern of birefringent colours crossed by dark bands (or isogyres), which can be produced using a geological petrographic microscope for the purposes of mineral identification and investigation of mineral optical and chemical properties.

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Conoscopy

Conoscopy (from Ancient Greek κῶνος (konos) "cone, spinning top, pine cone" and σκοπέω (skopeo) "examine, inspect, look to or into, consider") is an optical technique to make observations of a transparent specimen in a cone of converging rays of light.

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Isotropy

Isotropy is uniformity in all orientations; it is derived from the Greek isos (ἴσος, "equal") and tropos (τρόπος, "way").

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Mineral

A mineral is a naturally occurring chemical compound, usually of crystalline form and not produced by life processes.

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Nicol prism

A Nicol prism is a type of polarizer, an optical device used to produce a polarized beam of light.

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Optical microscope

The optical microscope, often referred to as the light microscope, is a type of microscope that uses visible light and a system of lenses to magnify images of small subjects.

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Optical mineralogy

Optical mineralogy is the study of minerals and rocks by measuring their optical properties.

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Petrography

Petrography is a branch of petrology that focuses on detailed descriptions of rocks.

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Petrology

Petrology (from the Greek πέτρος, pétros, "rock" and λόγος, lógos, "subject matter", see -logy) is the branch of geology that studies rocks and the conditions under which they form.

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Phase telescope

A phase telescope or Bertrand lens is an optical device used in aligning the various optical components of a light microscope.

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Polarized light microscopy

Polarized light microscopy can mean any of a number of optical microscopy techniques involving polarized light.

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Polarizer

A polarizer or polariser is an optical filter that lets light waves of a specific polarization pass through while blocking light waves of other polarizations.

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Rock (geology)

Rock or stone is a natural substance, a solid aggregate of one or more minerals or mineraloids.

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Thin section

In optical mineralogy and petrography, a thin section (or petrographic thin section) is a laboratory preparation of a rock, mineral, soil, pottery, bones, or even metal sample for use with a polarizing petrographic microscope, electron microscope and electron microprobe.

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Vernier scale

A vernier scale is a visual aid that allows the user to measure more precisely than could be done unaided when reading a uniformly divided straight or circular measurement scale.

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Waveplate

A waveplate or retarder is an optical device that alters the polarization state of a light wave travelling through it.

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Redirects here:

Polarizing microscope.

References

[1] https://en.wikipedia.org/wiki/Petrographic_microscope

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