GEOLOGY
PHYSICAL MINERALOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Refractive index mineral
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Absorption of mineral
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Transmittance of mineral
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Nature of reflecting surface
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Detailed explanation-1: -Explanation: Lustre is entirely independent of colour of the mineral.
Detailed explanation-2: -lustre, in mineralogy, the appearance of a mineral surface in terms of its light-reflective qualities. Lustre depends upon a mineral’s refractive power, diaphaneity (degree of transparency), and structure.
Detailed explanation-3: -A minerals luster is produced by its ability to transmit light. Opaque minerals always have a metallic luster because they do not transmit any light.
Detailed explanation-4: -Luster describes how a mineral appears to reflects light, and how brilliant or dull the mineral is. The terms used to describe luster are: Metallic (also known as splendent) Submetallic.
Detailed explanation-5: -Luster is a property that describes how light is reflected on the surface of a mineral. It is one of the properties mineralogists look at when trying to determine the identity of a mineral.