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Minerals- The Real Wealth Of A Nation

Minerals- The Real Wealth Of A Nation

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minerals

According to geology and mineralogy, a mineral is a naturally occurring solid compound with a chemical composition and a crystal structure defined by relatively well-defined chemical properties.
Minerals are typically defined geologically as substances that occur in living organisms.

  • There are many different types of minerals, but the most common is rock. Calcite and aragonite are the primary minerals in limestone; quartz is the main mineral in quartzite.
quartz
  • Mineral abundance can also determine a rock’s character. For example, granite is characterized by its proportion of quartz, alkali feldspar, and plagioclase feldspar. Rocks also contain accessory minerals, which do not have a significant effect on their bulk composition. Minerals of other types can also be formed; coal, for instance, contains a high percentage of organic carbon.
  • Around 150 minerals are regarded as particularly important, regardless of their abundant nature or aesthetic value as collectors’ pieces.
rock

via: Forbes

  • A mineral or rock that is commercially significant, but not a gemstone, metal ore, or mineral fuel, is referred to as an industrial mineral. Mica, such as muscovite, is used as an insulator, filler, or even for windows (sometimes referred to as isinglass).
  • A mineral is an element that contains a high concentration of a particular substance, typically a metal. Mercury ore cinnabar zinc ore sphalerite tin ore cassiterite and boron ore colemanite are examples.
mercurey

via: NPR

  • A gem is a mineral with ornamental value, characterized by its beauty, durability, and usually, rarity, distinguishing it from non-gems. There are about 20 mineral species that qualify as gem, which make up about 35 of the most common gemstones. 
  • Gemstones can found in several varieties of minerals. For example, sapphire and ruby are both corundum, Al2O3, which can be considered gemstones.
gemstones

via: FossilEra

  • Depending on their hardness, minerals can resist scratching. Chemical composition and crystal structure both affect this physical property. There are crystallographic weaknesses that make some directions softer than others, which determine a mineral’s hardness.
  • Lustre describes the quality and intensity of light reflected from the surface of a mineral. Several qualitative terms are used to describe this property, which is categorized into metallic and non-metallic categories.
  • A metallic or submetallic mineral will reflect light differently than metals; galena and pyrite are examples of minerals with this lustre.
  • Non-metallic lustres include: adamantine, such as diamond; vitreous, such as pearls and apophyllite; resinous, such as garnet; and silky, which occurs in fibrous minerals such as asbestos.
pearls

via: BBC

However, some minerals are either biogenic (like calcite) or chemical compounds (like mellite). Living organisms synthesize inorganic minerals (such as hydroxylapatite) that also occur in rocks.
Solid minerals, unlike rock, are relatively homogeneous geologic materials at a large enough scale. An aggregate of two or more different minerals may consist of rock divided into distinct phases according to its mineral composition.

Blog Edited By Ritika Gupta

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