We have no meanings for "powder pumice" in our records yet.
1 Rub into the periphery a paste of sifted powdered pumice stone and water.
2 The great sandy piazza, glittered as if strewn with powdered pumice .
3 In Nebraska ash beds are found in twenty counties, and are often as white as powdered pumice .
4 A superficial and imperfect polish may be given by grinding for a short time with powdered pumice stone.
5 Sheets of zinc or of copper of a convenient size are carefully planished and polished with powdered pumice stone.
6 Boiling alkaline solutions and a free use of powdered pumice and the scrubbing brush must on no account be neglected.
7 The first coats should be rubbed with haircloth or curled hair, and the last with powdered pumice stone and raw linseed or crude oil.
Grammar, pronunciation and more