Soul searcher. Football fan. Completed Masters in Geology. Passionate about teaching. Qualified CSIR-NET, GATE, JAM.

Ankita Nandi

This course is about the various optical phenomenon and properties observed in minerals.

Crack CSIR NET by studying MATHEMATICS, PHYSICS, LIFE SCIENCE, CHEMISTRY, EARTH SCIENCE on one online platform. Everything you need to crack JRF.

CSIR-UGC NET

English

Optical Mineralogy For NET

Mineralogy & Petrology

Geology

Earth Sciences

NET Exams

Ace the toughest competitive and government exams in India 

Test Preparation

A brief overview of what the course has to offer.

Optical Mineralogy : Course Overview

Properties of Light

Various properties of light like reflection, refraction, total internal reflection discussed.

Properties of light Continued

Phenomenon of polarisation and how selective absorption produces plane polarised light.

Polarisation

Polarisation by reflection, Brewster's law, polarisation by double refraction

Polarisation Continued

Nicol Prism

Parts of a petrographic microscope discussed.

Petrographic Microscope

Refractrometry

Properties of isotropic minerals, examples of isotropic minerals, isotropic indicatrix

Isotropic Minerals

Introduction to anisotropic minerals, packing in anisotropic minerals, fundamentals of uniaxial minerals

Anisotropic Minerals

Uniaxial Minerals

Uniaxial Indicatrix

Interference Phenomena

Cause of interference colours, interference colour chart

Interference Phenomena Continued

Extinction

Types of accessory plates, function of accessory plates, sign of elongation

Accessory Plates

Pleochroism and important pleochroic minerals

Pleochroism

Biaxial Minerals

Biaxial Indicatrix

Optical orientations of biaxial crystals

Uniaxial Interference Figures : Formation

Types of uniaxial interference figures with their formation

Uniaxial Interference Figures : Types

Biaxial Interference Figures

Remaining types of biaxial interference figures

Biaxial Interference Figures Continued

Optic Sign Determination : Uniaxial Minerals

Optic Sign Determination : Biaxial Minerals

Optic Sign Determination : Biaxial Minerals Continued

Optical Properties of Minerals Part 1

Optical Properties of Minerals Part 2

Optical Properties of Minerals Part 3

Optical Properties of Minerals Part 4

Optical Properties of Minerals Part 5

Optical Properties of Minerals Part 6

This course covers the fundamentals of igneous petrology  and includes classification, textures and structures.

Igneous Petrology

The course is about the various internal and external features of crystals, the laws that govern them and the overview of crystals and minerals in general.

Crystallography

This course is a continuation of the previous course on crystallography, highlighting the important elements that generally come in exams.

Crystallography 2

The course is about the aspects metamorphism in rocks, its types, characteristics, textures and structures. It will also deal with the facies concept and reactions. An overall guide to any competitive exam.

Lessons

33 lessons • 5h 54m