6 Extinction

Optics of Anisotropic Minerals

5 Birefringence

8 Twinning

Cleavage tutorial Optical mineralogy

Extinction Angle in Mineral Optics

Earth Optics Video 2: Cross Polarized Light

How to Identify Igneous Rocks in Thin Section & Hand Sample | GEO GIRL

# Minéraux en LPnA vs LPA, critères de reconnaissance, SVT, Hervé Kempf, lycée de l'Elorn

Plagioclase tutorial optical mineralogy

Earth Optics Video 3: Fast & Slow Ray

10 The Michel-Levy method

Types of Silicates Part 1: Orthosilicates, Disilicates, and Cyclosilicates

Earth Optics Video 6: Biaxial Minerals

Amphibole discrimination tutorial Optical mineralogy

7 Gypsum plate

"Isotropic vs Anisotropic Minerals"

Earth Optics Video 1: Plane Polarized Light

Introduction to Optical Mineralogy

Isotropic and uniaxial indicatrix JWenner

Types of Silicates Part 2: Inosilicates, Phyllosilicates, and Tectosilicates