The theory of Plate Tectonics developed by geoscientists during early 1960s is often described as a most revolutionary concept in the history of GEOLOGY as a science. It is now widely accepted that most complex geological riddles, past and present, are solved conveniently by the concept of plate tectonics. According to this concept, supported of […]
Theory of Plate Tectonics | Earth | Geology
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Minerals: Optical and Physical Properties | Rocks | Geology
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In this article we will discuss about the optical and physical properties of minerals. Physical Properties of Minerals: 1. Colour: The colour of any object is a light dependent property- it is the appearance of the particular object in light (darkness destroys colour). A particular colour is produced by reflection of some and absorption of […]
Crystals: Meaning, Elements and Symmetry | Rocks | Geology
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In this article we will discuss about:- 1. Meaning of a Crystal 2. Elements of a Crystal 3. Crystallographic Axes 4. Parameters, Indices, Symbols 5. Forms. Meaning of a Crystal: A crystal may be defined as a solid polyhedral form of a substance bounded by smooth geometrical surfaces called faces. Crystals may be natural or […]