Question

define a mineral what are the major physical properties of a mineral​

Answer 1

Answer:

Introduction. Top. The physical characteristics of minerals include traits which are used to identify and describe mineral species. These traits include color, streak, luster, density, hardness, cleavage, fracture, tenacity, and crystal habit.

Answer 2

A mineral or mineral species is a solid chemical compound with a fairly well-defined chemical composition and a specific crystal structure that occurs naturally in pure form in geology and mineralogy. Quartz, feldspar, mica, amphibole, olivine, and calcite are examples of common minerals.

The major physical properties of a mineral​ are-

• External crystal structure - The internal arrangement of the molecules determines the external crystal form — cubes, octahedrons, hexagonal prisms, and so on.

• Cleavage -
• It denotes a crystal splitting along a smooth plane.
• Cleavage does not occur in every mineral.
• A structural weakness plane along which a mineral is likely to split.
• The ease with which a mineral cleaves and the character of the exposed surface are both indicated by the quality of its cleavage.

• Fracture - When a mineral is fragmented or crushed, it fractures.

      The occurrence of clearly demarcated planar surfaces is not caused      

       by fracture. Minerals can fracture in any direction.

• Lustre - Lustre minerals are classified based on whether they are opaque or transparent.Each mineral has a distinct lustre, such as silky, metallic, or glossy.

• Colour - Some minerals have a distinct colour that is determined by their molecular structure.Impurities colour some minerals, such as quartz, which can be white, green, red, or yellow.

• Streak - Streak is a mineral's shade after it has been crushed to a fine powder.It may be the same colour as the mineral or a different colour.

• Structure - The arrangement of the individual crystals is referred to as structure.

• Hardness - The level of difficulty with which a smooth surface of a mineral specimen can be scratched is defined as hardness.It is determined by the strength of the bonds that make up its crystal

• Transparency

  Transparent: Light rays pass through so that objects can be seen plainly

  Translucent: Light rays pass through but will get diffused so that objects cannot be seen.

  Opaque: Light will not pass at all through the opaque objects.

• Specific gravity - Specific gravity is a quantity with no units.It is defined as the weight of a given object divided by the weight of an equal volume of water.

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