Answer:
A mineral is a naturally occurring inorganic element or compound having an orderly internal structure and characteristic chemical composition, crystal form, and physical properties.
matte, dull, unpolished, dark.
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. A metallic luster means shiny like polished metal. OR.
Image result for Describe each property of minerals:Luster Texture Color Streak Hardness. Color and luster describe the mineral's outer appearance. Streak is the color of the powder. Mohs Hardness Scale is used to compare the hardness of minerals. Cleavage or the characteristic way a mineral breaks depends on the crystal structure of the mineral.
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