There are many different kinds of minerals in the nature. How do we distinguish and determine their properties? It will be difficult to determine them with naked eyes. However, the optical properties of different minerals are useful tools to help us. This course is mainly to introduce you the optical properties of minerals under the polarizing microscope. This knowledge is also important basis for examination and detmineration of rocks and minerals. If you want to know what will occur when a ray of light meets the minerals under microscope and to know how to identify the minerals under the microscope, Crystal Optics can give you answers!
Overview
Syllabus
- Chapter 1. The Basics of Crystal Optics
- 1. Natural light, Polarized light, isotropic and anisotropic minerals
- 2. The Isotropic and Uniaxial Indicatrix
- 3. The Biaxial Indicatrix
- 4. Optical Orientation
- Chapter 2. The Polarizing Microscope
- 1. Correction and Adjustment of Polarizing Microscope
- Chapter3. The Properties of PPL of Microscope
- 1. Plane Polarized and Crossed Polar Lens and Extinction
- 2. Crystal Form
- 3. Mineral Cleavage
- 4. Color and Pleochroism
- 5. Mineral Relief
- Chapter4. The Properties of XPL of Microscope
- 1. Causes of Interference Colors
- 2. Complementary rules, Compensators
- 3. Descriptionof the Interference Color and Estimation of the Birefringence
- 4.Types of Extinction and Determination of the Extinction Angle
- 5. Determination of the elongation sign
- 6. Twin
- Chapter5. The Properties of Conoscopic Microscope
- 1. Constitution and Function of Conoscopic Condition
- 2. Interference Figure ⊥OA of Uniaxial
- 3. Interference Figure ∥OA and oblique to OA Uniaxial
- 4. Interference Figure ⊥Bxa,OA of Biaxial
- 5. Systematic Identification of Transparent Minerals
- Final Examination
Taught by
ChenXi, ZhaoFeng, LiuXiaohong, Wanghaozheng, TangHongming, and Xiaihua
