Minerology techniques


Considering all of the analytical techniques described for mineralogy in this unit, explain in detail which technique would be the most suitable for:

1. Mineral identification in a milled ore sample? Why?
2. Measuring the amount of solid solution gold in pyrite? Why?
3. Determining the grain size and degree of interlocking in a pyrite-chalcopyrite-sphalerite ore? Why?
4. Suggesting the economic implications of penalty elements? Why?
Question – 2
A supergene ore from a magmatic nickel sulphide deposit near Kambalda contains pyrite, violarite (FeNi2S4), chalcopyrite and millerite (NiS).

(i) Give a brief overall description of magmatic nickel sulphide deposits?

(ii) Describe the transformation of the primary sulphides (in the hypogene zone) to secondary sulphides (supergene enrichment)? Use chemical reactions where appropriate.

(iii) Using the table of mean atomic numbers and the formula for calculating mean Z (in your lecture notes), discuss the suitability of using an SEM/back-scattered electron (BE) system for carrying out mineralogical investigations of this ore. In your discussion, assume that there needs to be a difference of about 0.5 in the mean atomic numbers between minerals, in order to distinguish them on a BE image.


Do you want your assignment written by the best essay experts? Then look no further. Our team of experienced writers are on standby to deliver to you a quality written paper as per your specified instructions. Order Now, and enjoy an amazing discount!!

Is this question part of your Assignment?

We can help

Our aim is to help you get A+ grades on your Coursework.

We handle assignments in a multiplicity of subject areas including Admission Essays, General Essays, Case Studies, Coursework, Dissertations, Editing, Research Papers, and Research proposals

Header Button Label: Get Started NowGet Started Header Button Label: View writing samplesView writing samples