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 […]
Minerals: Optical and Physical Properties | Rocks | Geology
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List of Important Igneous Rocks | Geology
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Here is a list of eleven most important igneous rocks: 1. Granites 2. Diorite 3. Andesite 4. Syenites 5. Gabbro 6. Dolerites 7. Basalts 8. Pegmatites 9. Aplites 10. Lamprophyres 11. Peridotites. 1. Granites: Granites may be defined as plutonic light coloured igneous rocks. These are among the most common igneous rocks. The word granite […]
Igneous Rocks: Texture and Classification | Geology
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In this article we will discuss about the texture and classification of igneous rocks. Texture of Igneous Rocks: Factors Explaining Texture of Igneous Rocks: The following three factors will primarily define the type of texture in a given igneous rock: (a) Degree of Crystallization: In an igneous rock, all the constituent minerals may be present […]