GeologyHub

Lithium – Minerals, deposits, mining and use of lithium

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lithium

Lithium minerals are naturally occurring compounds that contain economically significant concentrations lithium in various forms, including lithium carbonate, lithium hydroxide, and lithium chloride. The most common lithium minerals include: Lithium Minerals It has been studied those concentrations exceeding 0.5% are feasible to extract lithium. Lithium deposits Lithium deposits are natural concentrations of lithium in rocks, … Read more

Granite rock, classification and origin

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granite

What type rock is Granite? Granite is a coarse-grained igneous rock composed of about 25 percent quartz and roughly 65 percent feldspar, mostly potassium and sodium-rich feldspar. Quartz are roughly spherical in shape, are often glassy and clear to light gray in colour. Feldspar crystals are generally white to gray or salmon pink in colour … Read more

Actinolite Mineral

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actinolite mineral

Actinolite (ac-tin’-o-lite) is a bright-green or grayish-green monoclinic silicate mineral of the amphibole group: Ca2(Mg,Fe)5 Si8O22(OH)2. It may contain manganese. Actinolite is a variety of asbestos, occurring in long, slender, needlelike crystals and also in fibrous, radiated, or columnar forms in metamorphic rocks (such as schists) and in altered igneous rocks. Actinolite was named by … Read more

Types of Metamorphism – 9 examples

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types of metamorphims

Metamorphism The mineralogical, chemical, and structural adjustment of solid rocks to physical and chemical conditions which have generally been imposed at depth below the surface zones of weathering and cementation, and which differ from the conditions under which the rocks in question originated. Metamorphism means to “change form,”. In other words, metamorphism is a process … Read more

What are Agents of Metamorphism?

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agents of metamorphism

Three agents of metamorphism are temperature, pressure and chemically active fluids. Metamorphic rocks form by recrystallization in the solid state because of changes in temperature, pressure, or the composition of pore fluids. Agents of Metamorphism The process of metamorphism of rocks happens due to the effects of high temperature, pressure and chemically active fluids. These … Read more

Chemical Weathering – Examples, Types & Reactions

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Chemical Weathering – Examples, Types & Reactions

Weathering of rocks is due to the processes of mechanical disintegration and chemical decomposition. It can happen due to different physical, chemical and biological factors of nature.

Chemical weathering is the process by which rocks are decomposed by chemical processes like Hydration, reduction, oxidation, carbonation, etc. All these can be discussed under chemical factors.

Unconformity and different types in Geology

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unconformity

Unconformity represents a period of erosion and deposition. Throughout Earth history, the deposition of sediment has been interrupted again and again. All such breaks in the rock record are called unconformities.