Andalusite in South Africa

The occurrence, properties, and uses of andalusite, and its advantages over other refractory minerals and materials, are discussed. Ore reserves are given for the five producing areas, and statistics on production, export sales, and prices are included to illustrate the growth of the industry since...

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Bibliographic Details
Published in:Journal of the South African Institute of Mining and Metallurgy 1989-06, Vol.89 (6), p.157-171
Main Author: Overbeek, P.W.
Format: Article
Language:English
Subjects:
andalusite
andalusite beneficiation
andalusite production
andalusite properties
Bushveld Complex
Chuniespoort-Penge-Lydenburg area
fines dumps
magnetic separation
Marico
Pretoria Series
sillimanite-group minerals
superior-grade high-alumina refractories
Thabazimbi
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Summary:The occurrence, properties, and uses of andalusite, and its advantages over other refractory minerals and materials, are discussed. Ore reserves are given for the five producing areas, and statistics on production, export sales, and prices are included to illustrate the growth of the industry since the early 1960s. The mining and beneficiation procedures are descriptionbed, with special reference to new techniques in concentration and magnetic separation. As fines dumps represent a considerable source of andalusite, possible methods of recovery are discussed. . The outlook for the future appears favourable, and possible competition from other sources and substitute refractory minerals are mentioned. It is concluded that the industry is in a sound position to maintain South Africa's status as the world's foremost producer and supplier of andalusite.
ISSN:0038-223X