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Articles | Minerals

Minerals

Have we missed some critical information from this article? Are you an expert that can contribute or can you provide pictures of this mineral from your own collection? Shoot through an email to [email protected] with the subject 'Suggestion for Mineral Series Article' and one of our editorial team will get back to you.

What is the London Metal Exchange?

The London Metal Exchange (LME), founded in 1877, is the world’s largest trading center of industrial metals. It provides futures contracts and options on a number of base and other metals.

8 Oct 2014
An Introduction to Geophysics

An Introduction to Geophysics

Geophysics is an interdisciplinary physical science which is related to the study of the Earth by means of quantitative physical methods. It is an applied science that deals with the investigation of Earth's internal structure, magnetosphere, atmosphere, ocean and crust.

17 Sep 2014

What Are Metamorphic Rocks? - Mining Fundamentals

Metamorphic rocks are formed at a depth of 12 to 16 km beneath the Earth’s surface, where high temperature, pressure and chemical alterations cause transformation of pre-existing rocks into another type of rock.

15 Sep 2014

Fault - Mining Fundamentals

A fault is a break or fracture in the Earth's crust caused by tectonic forces along which slippage of rock has occurred.

6 Jun 2014

Feldspars - Mining Fundamentals

Feldspars are a group of silicate minerals that occur in igneous rocks. They are said to be one of the most abundant group of minerals in the earth's crust.The group consists of about 20 members.

6 Jun 2014

Magnetic Separation - Mining Fundamentals

Magnetic separation is a process by which magnetically susceptible material is separated from a mixture by the application of a strong magnetic field. Iron ores are usually subjected to magnetic separation process due to the high magnetic susceptibility of iron.

25 May 2014

Outcrop - Mining Fundamentals

Outcrop is a bedrock that is exposed or old superficial deposits on the Earth’s surface. In most places, outcrops are covered by a mantle of soil and vegetation. However, the rock may crop out or exposed in places where the overlying cover is removed by tectonic uplift or erosion.

24 May 2014

Banded Iron Formation - Mining Fundamentals

Banded iron formations (BIFs) are sedimentary rocks characterized by the presence of alternating layers of iron-rich minerals known as magnetite and amorphous silica-rich rocks known as cherts.

29 Apr 2014

Migmatite - Occurence, Properties and Distribution

Migmatite is a rock composed of both igneous and metamorphic rocks. The rock derived its name from a Greek word which means “mixed rock”. It was first discovered by Jakob Johannes Sederholm in 1907.

28 Apr 2014

Lamprophyre - Mining Fundamentals

Lamprophyre is a group of ultrapotassic igneous rocks which consist of phenocrysts of mica, particularly biotite or phlogopite and amphibole such as pargasite or hornblende.

23 Apr 2014
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