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| Material Trade Name |
Nero Impala® |
| Other Commercial Names |
Nero Africa, Rustenburg |
| Country of Origin |
South Africa |
| Location |
East of Rustenburg, North West Province |
| Geological Classification |
Gabbro-norite |
| Lithostratigraphic Unit |
Rustenburg layered suite of the Bushveld Igneous Complex |
Macroscopic Description
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Unfractured medium-grained dark grey rock consisting of phenocrysts
of grey and black minerals
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Microscopic Description
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| Primary Minerals: |
| Plagioclase (64%), orthopryoxene (30%), clinopryoxene (4%) |
| Secondary Minerals: |
| Amphibole (<1%), chlorite (<1%), sericite (<1%), talc (<1%) |
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| Grain Size |
Medium - 5mm to 10mm |
| Texture |
Granular |
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