Microscopic Determination of the Ore Minerals. M. N. ShortDetermination of the Opaque Minerals. C. Mason FarnhamLehrbuch der Erzmikroskopie. H. Schneiderhöhn , P. Ramdohr

1932 ◽  
Vol 40 (1) ◽  
pp. 93-95
Keyword(s):  
Ore Minerals ◽  
Opaque Minerals

Some relationships between the reflectivities of sulphide ore-minerals

1933 ◽  
Vol 23 (143) ◽  
pp. 458-462 ◽  
Author(s):  
F. Coles Phillips
Keyword(s):  
Optical Properties ◽  
Rapid Development ◽  
Direct Determination ◽  
Quantitative Measure ◽  
Sulphide Ore ◽  
Ore Minerals ◽  
Reflection Of Light ◽  
Opaque Minerals ◽  
Made In

Since the early work of Dmde and others on the reflection of light by opaque crystalline media, little progress has been made in the direct determination of the indices of refraction and absorption for such substances. Interest in the optical properties of the opaque minerals, however, has been greatly stimulated by the rapid development in the last few years of the methods of ore-microscopy first brought into prominence by Campbell in 1906. Full theoretical discussions have been given recently by Berek, Koenigsberger, and others, but the only quantitative measure feasible in routine microscopy at present is that of the reflectivity.

A BINOCULAR MAGNIFIER FOR THE DETERMINATION OF OPAQUE MINERALS

Science ◽  
1926 ◽  
Vol 64 (1657) ◽  
pp. 332-333
Author(s):  
R. C. Treasher
Keyword(s):  
Opaque Minerals

scholarly journals Selective Desintegration and Concentration: Theory and Practice

2018 ◽  
Vol 56 ◽  
pp. 03001 ◽  
Author(s):  
Tatyana Aleksandrova ◽  
N. Nikolaeva ◽  
Holger Lieberwirth ◽  
Alexander Aleksandrov
Keyword(s):  
Microstructural Analysis ◽  
Physical And Mechanical Properties ◽  
Theory And Practice ◽  
Geochemical Composition ◽  
Nickel Extraction ◽  
X Ray ◽  
Roll Mill ◽  
Morphometric Features ◽  
Ore Minerals

Investigations on the possibility of selective grinding and benefication of quartz-pecoraite ores of the Ufaleiskoye deposit have been carried out. Methods of computer X-ray microtomography have been used to study the morphometric features and pore volume parameters of samples, and these data was compared with results of quantitative microstructural analysis. The performed research shows the powerful capabilities of X-ray computer microtomography method for solving scientific and practical problems related to the study of physical and mechanical properties of rocks, the determination of ore minerals liberation, the evaluation of their content, the analysis of the granulometric composition and the spatial distribution of their grains. Analysis of mineralogical and geochemical composition of ores showed that these ores meet the criteria for selective disintegration. An analysis of flotation experiments results showed that when material is grinded in a roll mill, the consumption of reagents is 25% lower than when grinding in a ball mill if the same degree of nickel extraction is achieved.

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