SCIENCE
EARTH SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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luster
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color
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streak
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cleavage
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Detailed explanation-1: -Luster is the property of minerals that describes how light is reflected. Metallic, waxy, vitreous, silky, pearly, and dull are all types of luster.
Detailed explanation-2: -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-3: -Pearly minerals consist of thin transparent co-planar sheets. Light reflecting from these layers give them a lustre reminiscent of pearls. Such minerals possess perfect cleavage, with examples including muscovite and stilbite.
Detailed explanation-4: -Pearly Luster This appearance often occurs on cleavage surfaces of transparent to translucent minerals that include some micas, some feldspars, and some carbonate minerals. Examples include muscovite, orthoclase, and calcite.
Detailed explanation-5: -Standard names for luster include metallic, glassy, pearly, silky, greasy, and dull. It is often useful to first determine if a mineral has a metallic luster.