Ceramics and Industrial Minerals Resource List(Ceramics.com) You can browse the list or use the search window to find what you are looking for. Not for individual raw material searches.
Ceramic Materials Database (Digitalfire) This is a large list of materials with its own search engine. It includes hundreds of frits and provides physical and descriptive information on most materials. Rather than reciting a bunch of numbers, the information is designed to help you understand exactly what each material is.
Oxides Database (Digitalfire) A list of dozens of ceramic oxides and the properties you need to know about them.
Addition Materials List(Matrix) The following pages list materials data in alphabetical order for those who may wish to place new materials into their glaze calculation software.
MSDS Links There are several places on the INTERNET which have huge databases filled with MSDS information. Most of these sites are searchable by chemical name, manufacturer name, and/or CAS.
DigitalFire Articles on Safety A variety of articles by different authors on general safety issues and individual materials types which are are cited as hazardous.