Humanities/Arts Exam > Humanities/Arts Videos > Geography Class 11 > Properties of Minerals
Properties of Minerals Video Lecture | Geography Class 11 - Humanities/Arts
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FAQs on Properties of Minerals Video Lecture - Geography Class 11 - Humanities/Arts
| 1. What are the physical properties of minerals? |  |
Ans. Physical properties of minerals are characteristics that can be observed and measured without changing the composition of the mineral. These properties include color, luster, hardness, cleavage, and specific gravity.
| 2. How is the color of a mineral determined? | |
Ans. The color of a mineral is determined by the way it absorbs and reflects light. Some minerals have a specific color due to the presence of certain impurities or trace elements, while others may exhibit different colors depending on their crystal structure or the presence of light interference.
| 3. What is luster in minerals? | |
Ans. Luster refers to the way light interacts with the surface of a mineral. It describes the appearance or quality of light reflected from the mineral's surface. Common types of luster include metallic, vitreous (glassy), pearly, greasy, and silky.
| 4. How is the hardness of a mineral determined? | |
Ans. The hardness of a mineral is determined by its resistance to scratching. The Mohs scale of hardness is commonly used to measure mineral hardness, ranging from 1 (softest) to 10 (hardest). The scale is based on the ability of minerals to scratch each other, with diamonds being the hardest mineral with a rating of 10.
| 5. What is specific gravity in minerals? | |
Ans. Specific gravity is the ratio of the density of a mineral to the density of water. It helps determine the relative heaviness or lightness of a mineral compared to an equal volume of water. Specific gravity is a useful property for mineral identification and can provide clues about the mineral's composition and density.
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Nov 22, 2024 Last updated |
Video Description: Properties of Minerals for Humanities/Arts 2024 is part of Geography Class 11 preparation.
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