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.
Pumice is a form of volcanic glass that is rich in silica. There  are also fairly high amounts of aluminum oxide, sodium oxide, and  potassium oxide. The holes or vesicles a â¦ re the remnants of gas  bubbles that formed when the pumice was still molten.1 person found this useful.umice is a very light weight rock-it floats in water. It is part of the ejecta of a andesite volcano. It may be found in streams or on coastlines nearby to andesite volcano â¦ es.