This publication presents the results of ceramic tests conducted on Arkansas nepheline syenite.

It includes:

• A series of 21 tables that present the results of many different types of analyses of nepheline syenite, including, but not limited to: petrographic analysis; chemical analyses; test-body compositions; fired and unfired test bodies; various types of separation tests; wet sieve analysis; wet magnetic separation; properties of a fired brick clay containing syenite dust; strength tests, including modulus of rupture and tensile strength
• Summary and Conclusions: No method was found that successfully removed sufficient iron to allow this resource to be used as a ceramic coating. Testing did show its usefulness as an additive to ceramic bodies, where it yields desirable fusion characteristics and a high strength glassy phase to the fired ceramic body.

*Includes: 21 pages, 21 tables

Download pdf (2.53 MB)

Arkansas Geological Survey
3815 West Roosevelt Road
Little Rock, AR 72204
(501) 296-1877 or (501) 296-1878