Published monthly by Iht 



New York State Education Department 



BULLETIN 367 FEBRUARY I 906 



New York State Museum 



John M. Clarke Director 

 Bulletin 100 



ECONOMIC GEOLOGY 14 



FIRE TESTS 



OF 



SOME NEW YORK BUILDING STONES 



BY 



W. E. McCOURT 



PAGE 



Introductory note 5 



Previous investigations of re- 

 fractoriness 6 



Effect of fire on stone 9 



Tests 12 



Granites and gneisses 13 



Sandstones 14 



Limestones 15 



Marble ' 15 



PAGE 



escription of fire tests 16 



Granites and gneisses 17 



Sandstones 20 



Limestones 22 



Marble 24 



Summary 26 



Petrographic description of 



stones tested 29 



References 36 



Index 37 



