Related Overviews


More Like This

Show all results sharing these subjects:

  • Chemistry
  • Earth Sciences and Geography


Show Summary Details

Quick Reference

A greyish-black variety of corundum (Al2O3) which can be crushed and powdered for use as an abrasive for polishing hard surfaces.

Subjects: Chemistry — Earth Sciences and Geography.

Reference entries

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.