G2140 Optical Mineralogy

Faculty of Science
Spring 2002
Extent and Intensity
1/2. 3 credit(s). Type of Completion: graded credit.
Teacher(s)
doc. RNDr. Miroslava Gregerová, CSc. (lecturer)
Guaranteed by
doc. RNDr. Rostislav Melichar, Dr.
Department of Geological Sciences – Earth Sciences Section – Faculty of Science
Contact Person: doc. RNDr. Miroslava Gregerová, CSc.
Course Enrolment Limitations
The course is also offered to the students of the fields other than those the course is directly associated with.
fields of study / plans the course is directly associated with
Course objectives
The education is focused above all on mastering the practical tasks of optical mineralogy. 1) Introduction to optical mineralogy:  refraction and polarisation of light, Becke line, positive and negative relief of minerals, refractive indices (index of refraction), total reflection, birefringence  optical properties of isotropic minerals  optical properties of anisotropic minerals - uniaxial - biaxial 2) Work with polarising microscope Microscopic study of minerals in polarised light:  determination of the nicol position, determination of extinction angle, interference colours and birefringence height  function of compensating plates and quartz wedge, their usage the character of the zone (ráz délky, charakter délky)  conoscopy and optical character of minerals: - uniaxial - biaxial 3) The course of determination of minerals in thin sections using polarising microscope: The system of rock-forming minerals: hours of practicals *quartz, potash feldspars, plagioclases (basicity of plagioclase determined with planar table of the polarising microscope 6 *nefeline, leucite, sodalite, nosean, hauyn, analcime 3 *olivine, pyroxenes, amphiboles 3 *muscovite, biotite, phlogopite, cinnvaldite 3 *carbonates, barite, tourmaline, garnets 3 **allanite, zoisite, epidote, klinozoisite, mellilite, chloritoid, 3 **chlorite, glaukonite, minerals of the serpentine group, talc 3 **andalusite, sillimanite, kyanite, cordierite, vesuviane, wollastonite, 3 **gypsum, anhydrite, fluorite, halite, zeolites 3 ***skapolite, chondrodite group, prehnite 3 ***kankrinite, mullite, periklas, spinels, staurolite, dumortierite, lawsonite, pumpellyite, brucite 3 ***corundum, rutile, apatite, zircon, titanite, beryl, topaz, monazite 3 Note: the division of minerals is not on classification pronciples, but according to the level of required knowledge: Minerals marked* need unconditionally be recognized, ** are possible to be discussed *** overlooking in the thin section does not influence the grading Scheduled for 12 weeks of the semester
Language of instruction
Czech
Further comments (probably available only in Czech)
The course is taught annually.
The course is taught: every week.
The course is also listed under the following terms Spring 2000, Spring 2001.
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