1 Monday: The Garden Grove forecast for Oct 19 is 79 degrees and Partly Cloudy. 2  There is 48 percentage chance of rain and 6 mph winds from the Southwest. 3  Tuesday: The Garden Grove forecast for Oct 20 is 84 degrees and Sunny.
Pumice (pronunciation: /ËpÊmáµ»s/), called pumicite in its powdered or dust form, is a volcanic rock that consists of highly vesicular rough textured volcanic glass, which may or may not contain crystals. It is typically light colored.
Country of Origin: United States. Pumice powder is made from pumice, a kind of igneous rock that is formed when a volcano erupts. Pumice is abrasive, which is where much of pumice powder's usefulness comes from. Cement. Pumice powder is used as an additive in cement.It makes the concrete lighter than traditional concrete.ountry of Origin: United States. Pumice powder is made from pumice, a kind of igneous rock that is formed when a volcano erupts. Pumice is abrasive, which is where much of pumice powder's usefulness comes from. Cement. Pumice powder is used as an additive in cement.