A Caltech Library Service

Cleavage of ionic minerals

Shappell, M. D. (1936) Cleavage of ionic minerals. American Mineralogist, 21 (2). pp. 75-102. ISSN 0003-004X.

Full text is not posted in this repository. Consult Related URLs below.

Use this Persistent URL to link to this item:


Mineral cleavage can be resolved into two components: cleavability and optical effect. The electrical theory of matter in the solid state leads to a quantitative expression for the cleavability of ionic minerals C_(hkl) = A(hkl)/Σ_i n_i s_i cos θ_i. Approximate values for s are obtained by using the electrostatic bond strength. Systematic application to minerals whose constituent atoms have inert-gas cores gives good agreement with observation.

Item Type:Article
Related URLs:
URLURL TypeDescription
Additional Information:© 1936 Mineralogical Society of America. This research was greatly aided by a Storrow Fellowship in Geology of the National Research Council. I wish to thank Professor Linus Pauling for his kindly interest and advice throughout the investigation. I am also indebted to Gates Chemical Laboratory for research facilities.
Funding AgencyGrant Number
National Research CouncilUNSPECIFIED
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Balch Graduate School of the Geological Sciences199
Issue or Number:2
Record Number:CaltechAUTHORS:20200221-142442234
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:101468
Deposited By: Tony Diaz
Deposited On:21 Feb 2020 22:34
Last Modified:21 Feb 2020 22:34

Repository Staff Only: item control page