Hardness Estimation of Minerals, Rocks and Ceramic Materials

1. Introduction. 2. Hardness in Materials Estimation. 3. Introduction to Crystallochemical Theory of Minerals and Crystalline Phase Hardness. 4. Classification of Hardness Test Methods according to the Mode of Action on Sample under Test. 5. Hardness as Influenced by Chemical and Phase Composition and by Structure and Texture. 6. Mechanical Destruction of Materials under Load and the Influence on Interpretation and Results of Measurement. 7. Hardness Anisotropy. 8. Usefulness of Impact Abrasion Hardness Method. 9. Non-Destructive Sonic Method for Hardness Measurement of Brittle Materials. 10. Useful Hardness Measurement Methods for Hard Materials in Grit Form. List of Symbols. Appendix. Bibliography. Author Index. Subject Index.