1 Sunday: The Garden Grove forecast for Oct 25 is 83 degrees and Sunny. 2  There is 13 percentage chance of rain and 5 mph winds from the West-Northwest. 3  Monday: The Garden Grove forecast for Oct 26 is 85 degrees and Sunny. 4  There is 22 percentage chance of rain and 2 mph winds from the East.
Pumice /ËpÊmÉ¨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.Scoria is another vesicular volcanic rock that differs from pumice in having larger vesicles, thicker vesicle walls and being dark colored and denser. Pumice is created when super-heated, highly pressurized rock is violently ejected from a volcano.The unusual foamy configuration of pumice happens because of simultaneous rapid cooling and rapid depressurization.t is commonly, but not exclusively of silicic or felsic to intermediate in composition (e.g., rhyolitic, dacitic, andesite, pantellerite, phonolite, trachyte), but basaltic and other compositions are known. Pumice is commonly pale in color, ranging from white, cream, blue or grey, to green-brown or black.
1. pumice-a light glass formed on the surface of some lavas; used as an abrasive. pumice stone. rock, stone-material consisting of the aggregate of minerals like those making up the Earth's crust; that mountain is solid rock; stone is abundant in New England and there are many quarries.. (Geological Science) Also called: pumice stone a light porous acid volcanic rock having the composition of rhyolite, used for scouring and, in powdered form, as an abrasive and for polishing. vb. 2. (Tools) (tr) to rub or polish with pumice. [C15 pomys, from Old French pomis, from Latin pÅ«mex ].