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The coarseness of the grains of a mineral is known as

The coarseness of the grains of a mineral is known as Correct Answer Texture

Explanation:

Texture:

Texture refers to the shape, arrangement and distribution of minerals or grains within the rock.

Structure:

Structure refers to broader features of a rock which may extend beyond the hand specimen into the outcrop, examples are bedding (in sedimentary rocks), foliation (in metamorphic rocks).

Note: Texture and structure, collectively referred to as fabric, are of primary importance in determining which major rock group a particular rock specimen belongs to.

Lustre:

Lustre is the way light interacts with the surface of a crystal, rock, or mineral.

Fracture:

A fracture is any separation in a geologic formation, such as a joint or a fault that divides the rock into two or more pieces.

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