Tyndall ® Stone suppliers, Gillis Quarries offer Tyndall ® Stone, a unique limestone, rich in color and decorative fossils used in many recognizable buildings worldwide. Please click the black and white image above to enter our site. Gillis Quarries, facing the nation since 1910.	This site has been developed to uncompromising standards. Optimal viewing will require the Netscape Navigator Web browser, version 2 or better. Screen resolution of at least 800x600 pixels is recommended and 16-bit color capabilities would be similarly helpful.