136 



BUILDIXG STOXES OF QUEENSLAND. 



Fig. 19. Customs House, Rockhamptox. 

 Erected 1899 of sandstone from Stanwell. 



It i.s a meclium- grained, light ljro\\'n .sand.stone and 

 works well. It take.s a fair arris and weathers very cleanly. 

 The average grain-size is about .5mm., while occasional 

 grains reach 1mm. h\ length. Many of the grains are 

 brecciated and strain polarisation is common. Felspar 

 grains are abundant (see microphotograph G, plate VIII). 

 Very careful selection is needed in order to prevent sub- 

 sequent fretting. The material quarried in recent years is 

 better than that quarried earlier o^^■ing to a better bed 

 being worked. The Railway Department state that the 

 stone ha.'^ stood Avell in raihvav culverts. 



Pentland and Torrens Creek Sandstone 

 sandstone, which in appearance 



very much 

 is quarried between 



This sanastone, wmcn in 

 resembles the Sydney sandstone 

 Pentland and Torrens Creek, and is used to a considerable 

 extent for monumental purj)oses in Charters Towers and 

 Townsville. 



Imported Sandstones. 



Sydney Sandstone. — ^This stone has been used to a 

 moderate extent in Brisljane although there does not appear 

 any real necessity for the imjjortation of the stone into this 



