The Cleavage of Ionic Minerals. The Crystal Structure of Bixbyite and the C-Modification of the Sesquioxides

[摘要]

Mineral cleavage can be resolved into two components;cleavability and optical effect. The electrical theory of matterin the solid state leads to a quantitative expression for thecleavability of ionic minerals

C_{hkl} = A_(hkl)/Σ_ín_is_icos θ _i

Approximate values for s are obtainable by using the electrostaticbond strength. Systematic application to minerals whose constituentatoms have inert-gas cores gives good agreement with observation.

[发布机构] University:California Institute of Technology;Department:Geological and Planetary Sciences

[关键词] Geology