Question

define mineral in brief and explain how they are formed without human interference​

Answer 1

Answer:

A mineral is a naturally occurring inorganic solid, with a definite chemical composition, and an ordered atomic arrangement. This may seem a bit of a mouthful, but if you break it down it becomes simpler. Minerals are naturally occurring. They are not made by humans. Minerals are inorganic.

Explanation:

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Answer 2

Minerals are substances naturally formed in the Earth.

Explanation:

• A mineral is a naturally occurring, inorganic solid with a definite chemical composition and  an orderly geometric arrangement of atoms.

• Mineral is a naturally occurring inorganic element or compound having an  orderly internal structure and characteristic chemical composition, crystal form and physical  properties.

• Minerals are typically solid, inorganic, have a crystal structure and are formed by geological processes naturally.
• A mineral may consist of a single chemical element or a compound more usually.

• Minerals form under an enormous range of geologic conditions. There are probably more ways to form minerals than there are types of minerals themselves.

• Minerals can form from volcanic gases, sediment formation, oxidation, crystallization from magma, or deposition from a saline fluid.

Some of the method of mineral formation:

• Precipitation from aqueous solution i.e., from hot water flowing underground, from evaporation of a lake or inland sea, or in some cases, directly from seawater.

• Precipitation from gaseous emanations i.e. in volcanic regions.

• Metamorphism - Formation of new minerals directly from elements within existing minerals under conditions of elevated temperature and pressure.

• Weathering - during which minerals unstable at Earth’s surface may be altered to other minerals.