Mineralogy

Stop Mining Method

Stop Mining Flat Deposit

In the previous topic you were introduced to the different methods adapted to mine underground deposits. Well the basic elements are common to most underground mining operations, there are many variations in the theme. In the next three topics we will see how these methods can be adapted to mining deposits in different geologic situations. stop mining method (1)Let’s

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By |2018-02-26T17:48:35+00:00February 22nd, 2018|Categories: Mineralogy|Comments Off on Stop Mining Method

Mineral Identification by Spectroscopy

FIG. 35 gives an idea of the spectroscope and of its different parts. P is a flint glass prism, having a refracting angle of 60° and resting on a brass plate fixed on a brass support, S. The brass plate carries the collimator tube C, in the end of which nearest to the prism is fixed a lens, the other end being closed by a plate

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By |2017-03-19T09:19:19+00:00January 11th, 2017|Categories: Laboratory Procedures, Mineralogy|Tags: |Comments Off on Mineral Identification by Spectroscopy

Properties of Gold & Alloys

From very early times the ancients were attracted by the beautiful colour, the brilliant lustre, and the indestructibility of gold, and spared no pains in the endeavour to acquire it. In the code of Menes, who reigned in Egypt in 3600 B.C. or about 2000 years before Moses, the ratio of value between gold and silver is mentioned, one part of gold

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By |2017-03-17T19:07:04+00:00January 11th, 2017|Categories: Mineralogy|Comments Off on Properties of Gold & Alloys

Crystallisation of Gold

Gold crystallises in the cubic system, occurring frequently in nature in the form of cubes, octahedra and rhombic dodecahedra. Cleavage is never exhibited. Single detached crystals are comparatively rare, and the crystals are usually attached end to end, forming strings, and branching, arborescent, or moss-like masses, which are composed of microscopic

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By |2017-03-17T19:07:05+00:00January 11th, 2017|Categories: Mineralogy|Comments Off on Crystallisation of Gold

Descriptive Mineralogy Classification

Scope of Descriptive Mineralogy. — It is the province of Descriptive Mineralogy to describe each mineral species, as regards: (1) form and structure; (2) physical characters; (3) chemical composition including blowpipe and chemical tests; (4) occurrence in nature with reference to geographical distribution and association with

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By |2017-03-17T19:08:10+00:00December 22nd, 2016|Categories: Mineralogy|Comments Off on Descriptive Mineralogy Classification

Crystal Structure of Solid Solutions using X-ray Spectrometer

“It would seem as if the methods used to date for the elucidation of this complex problem have yielded all they are capable of yielding and that further straining of these methods will only serve to confuse the issue, the point having been reached when this juggling, no matter how skilfully done, with allotropy, solid solutions, and strains is

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By |2017-03-17T19:08:12+00:00December 22nd, 2016|Categories: Mineralogy, Various|Comments Off on Crystal Structure of Solid Solutions using X-ray Spectrometer

Bulk Material Handling – Conveying & Silos

After beneficiation we now need to focus on the storage handling, and transport of the mined product which can be ore or coal to get it to the customer. As the products of mining are mostly grain able materials that are handled by disciplined known as bulk materials handling, which is the specialty of the discipline of mechanical engineering. In

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By |2018-02-19T15:25:57+00:00December 15th, 2016|Categories: Mineralogy|Comments Off on Bulk Material Handling – Conveying & Silos

Sluicing for Gold – Set up & Operation

And my pan now, what I’m going to do is, I’m going you down to that stinking river I was telling you about, it’s got a little bit of gold in there, don’t ask me where it’s at, because I’m not going to tell you. I’m going to show you the proper way to set up this sluice box, do some clean up and get some gold, so come on, let’s go.

Ok,

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By |2018-04-02T09:44:00+00:00December 14th, 2016|Categories: Gold Extraction, Mineralogy|Comments Off on Sluicing for Gold – Set up & Operation

Mineralogy & Flotation: Floatability VS Selectivity Test Assessment

flotation_1Mineralogy is the driving force behind flotation performance. A flotation batch and rate test measures this as mass pull recovery and concentrate grade. The real data from a rate test can be processed to determine the flotation kinetics of metal, mineral and gangue. flotation_rate_determination_testWhat we cover here is what are kinetics and what do they

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By |2017-03-17T19:12:29+00:00November 22nd, 2016|Categories: Flotation, Mineralogy, Tools of a Metallurgist|Comments Off on Mineralogy & Flotation: Floatability VS Selectivity Test Assessment

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