Optical properties of minerals - Optical Mineralogy скачать в хорошем качестве

Optical properties of minerals - Optical Mineralogy

Optical properties of minerals - Optical Mineralogy - Part 1: Basics of transmitted light microscopy and observations in Plane Polarized Light(PPL). This 2 part video goes into the optical properties of minerals observed via transmitted light microscopy with the petrographic microscope. Don't worry, there's no wait time for the second part, and you don't need to search to find it - as it's at the end of this video, click the end screen and you continue like normal, I just split it for pacing reasons. This video explains properties required for mineralogy and geology courses in university, and will hopefully help you understand mineralogy and geology better. part 1 explains: parts of the petrographic microscope opacity grain shape relief and the becke line test absorption colour and pleochroism cleavage part 2 explains: interference colours, birefringence, and the michel-levy chart extinction types extinction angles sign of elongation optic sign biaxial indicatrices and biaxial interference figures uniaxial indicatrices and uniaxial interference figures twinning zoning exsolution If you enjoyed and this video helped you better understand mineralogy, like, share, comment, and subscribe to SenDrev Science. #science #geology #minerals #mineralogy #rock #mineral #earthscience #earth 00:00 The Petrographic Microscope and transmitted light microscopy 01:19 How Polarizers Work 03:11 Thin Sections and grain mounts 03:31 Properties in PPL - Opacity 04:13 Properties in PPL - Grain/Crystal Shape 04:48 Properties in PPL - Refractive Index, Relief, and the Becke Line Test 06:16 Properties in PPL - Cleavage 06:53 Isotropic vs Anisotropic minerals 08:01 Properties in PPL - Pleochroism 09:05 Properties in plane-polarized light and properties in cross-polarized light