Pumice called pumicite in its powdered or dust form. source
Pumice called pumicite in its powdered or dust form.
Pumice is a volcanic rock that consists of highly vesicular rough textured volcanic glass, which may or may not contain crystals. source
Pumice is a volcanic rock that consists of highly vesicular rough textured volcanic glass, which may or may not contain crystals.
Pumice is typically light colored. source
Pumice is typically light colored.
Pumice is created when super-heated, highly pressurized rock is violently ejected from a volcano. source
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. source
The unusual foamy configuration of pumice happens because of simultaneous rapid cooling and rapid depressurization.
Pumice is composed of highly microvesicular glass pyroclastic with very thin, translucent bubble walls of extrusive igneous rock. source
Pumice is composed of highly microvesicular glass pyroclastic with very thin, translucent bubble walls of extrusive igneous rock.
Pumice forms when volcanic gases exsolving from viscous magma form bubbles that remain within the viscous magma as it cools to glass. source
Pumice forms when volcanic gases exsolving from viscous magma form bubbles that remain within the viscous magma as it cools to glass.
Pumice is a common product of explosive eruptions (plinian and ignimbrite-forming) and commonly forms zones in upper parts of silicic lavas. source
Pumice is a common product of explosive eruptions (plinian and ignimbrite-forming) and commonly forms zones in upper parts of silicic lavas.
Pumice has an average porosity of 90%, and initially floats on water. source
Pumice has an average porosity of 90%, and initially floats on water.
Pumice is considered a glass because it has no crystal structure. source
Pumice is considered a glass because it has no crystal structure.
Pumice varies in density according to the thickness of the solid material between the bubbles; many samples float in water. source
Pumice varies in density according to the thickness of the solid material between the bubbles; many samples float in water.
Most pumice contains tubular microvesicles that can impart a silky or fibrous fabric. source
Most pumice contains tubular microvesicles that can impart a silky or fibrous fabric.
Pumice is mixed with soil to provide good aeration for the plants. source
Pumice is mixed with soil to provide good aeration for the plants.
Pumice is used for hydroponics as a soilless growing medium. source
Pumice is used for hydroponics as a soilless growing medium.
Pumice is used as a growing substrate for growing horticultural crops. source
Pumice is used as a growing substrate for growing horticultural crops.
Scoria is another vesicular volcanic rock that differs from pumice in having larger vesicles, thicker vesicle walls and being dark colored and denser. source
Scoria is another vesicular volcanic rock that differs from pumice in having larger vesicles, thicker vesicle walls and being dark colored and denser.
"Pumice stones" are often used in beauty salons during the pedicure process to remove dry and excess skin from the bottom of the foot as well as calluses. source
"Pumice stones" are often used in beauty salons during the pedicure process to remove dry and excess skin from the bottom of the foot as well as calluses.
