How to clean quartz<br>Rinse the quartz off with a power washer. If you have a large amount of quartz with a heavy amount of mud or dirt on it, you can try to rinse it off with a power washer. Set your quartz on the ground (preferably on concrete or asphalt) and rinse off the dirt.
Quarts cleans better with a combination of high surfactant cleaner and a power washer used outdoors. 
( z1 have-degree :ARG1 ( z2 cleanse :quant ( z3 volume-quantity :quant 1 :unit ( z4 quart ) ) ) :ARG2 ( z5 good :ARG1 z2 ) :ARG3 ( z6 more ) :ARG4 ( z7 combine :ARG1 ( z8 thing :ARG0-of ( z9 cleanse :ARG1 ( z10 surfactant ) ) :ARG1-of ( z11 high ) ) :ARG2 ( z12 thing :ARG0-of ( z13 wash :ARG1 ( z14 power ) ) :ARG1-of ( z15 use :location ( z16 outdoors ) ) ) ) )