This Crystallography lecture series is designed to build a strong conceptual and problem-solving foundation for IIT JAM, GATE, and other Geology entrance examinations. The lectures are explained in a simple, step-by-step, exam-oriented manner, helping students understand concepts clearly and apply them confidently in theory and numerical questions. This series is ideal for B.Sc. and M.Sc. Geology students, as well as competitive exam aspirants. Each part of the series connects logically with the next, so it is recommended to watch the lectures in sequence for maximum benefit. 📌 Suitable for: IIT JAM Geology GATE Geology NET & State PSC exams University semester exams 📖 Watch the complete playlist to master Crystallography for Geology.

**“This buff-red mineral is orthoclase feldspar — a key mineral of the continental crust. Notice its two perfect cleavages meeting at 90 degrees — that right angle is a major diagnostic clue. Orthoclase has a hardness of 6, a glassy to pearly luster, and breaks into clean, blocky fragments. It forms deep inside the Earth during slow cooling of magma and is common in granite, pegmatite, and gneiss. If you see buff-red colour + 90° cleavage — think orthoclase!”**

An earthquake is the sudden shaking of the Earth caused by the release of energy along faults in the Earth’s crust. In this video, you’ll learn: • What is an earthquake • Causes of earthquakes • Terminology • Elastic Rebound theory • Measurement ( Richter Scale) Ideal for students preparing for UPSC Geology, IIT-JAM, GATE, State PSC, and anyone interested in Earth science. 📚 Simple, clear, and exam-oriented geology concepts.

Headlands are rocky coastal features shaped by wave erosion. In this short video, learn the classic headland erosion sequence: Sea Cave → Sea Arch → Sea Stack → Sea Stump 🌊 Useful for geology students, coastal geomorphology, and competitive exams like GATE, GSI, NET.

This Crystallography lecture series is designed to build a strong conceptual and problem-solving foundation for IIT JAM, GATE, and other Geology entrance examinations. The lectures are explained in a simple, step-by-step, exam-oriented manner, helping students understand concepts clearly and apply them confidently in theory and numerical questions. This series is ideal for B.Sc. and M.Sc. Geology students, as well as competitive exam aspirants. Each part of the series connects logically with the next, so it is recommended to watch the lectures in sequence for maximum benefit. 📌 Suitable for: IIT JAM Geology GATE Geology NET & State PSC exams University semester exams 📖 Watch the complete playlist to master Crystallography for Geology.

How old is the Earth? 🌍 Our planet formed about 4.54 billion years ago, based on radiometric dating of meteorites, the oldest Earth rocks, and lunar samples. In this short video, we explain: • The age of the Earth • How scientists calculate Earth’s age • What geological time scale means • Why radiometric dating is important Perfect for students preparing for UPSC Geology, IIT-JAM, GATE, State PSC, and for anyone curious about Earth’s deep history. 📚 Simple geology explained with real science!

Wow — these armored arthropods ruled the ancient seas! Dive into 1:30 of Trilobites: The Paleozoic Powerhouses to see how trilobites first appeared ~521 million years ago, evolved eyes and complex behavior, and dominated the Cambrian through Permian oceans before going extinct in the Permian Mass Extinction (~252 Ma). Learn about their three-lobed bodies, size range from grain-sized to 70+ cm, and why their fossils are key to understanding early animal evolution. Perfect for paleo fans, fossil hunters, and curious minds. If you enjoyed this micro-documentary, please like and share to spread the ancient story! #Trilobites #Paleozoic #Fossils #Cambrian #MassExtinction