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A pumice rock is an extrusive rock as we all know it can float on water ,the only rock that can float on water it can float because of the holes that have formed due to gas bubbles while it was forming.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoPumice is essentially a glass that once contained water under high pressure when it was formed underground in a very hot molten state. Then, when it gets ejected out into the air from a volcano, the pressure reduces and the water explosively turns to steam.
If a sample of cold pumice rock is held in the hand, it will be a very lightweight material, white or nearly so, and full of bubbles and vesicles. Since it is essentially foamed silica, it is an abrasive substance.
Wiki User
∙ 6y agoThrown out of an active volcano during an eruption, pumice is lava that is so full of gas bubble holes that pumice is very light and can sometime float. I remember my mother in Liverpool, England, in the 1950's using a pumice stone to wash, clean and whiten the front door step of the small terraced house we lived in at that time. Pumice stone is still used today, especially by women who used the pumice stone to sand away the hard skin on their heels.
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Describe one use for the igneous rocks granite basalt and pumice?
granite: sismecology basalt: hyperbole pumice: your big fat butt
Is pumice and obsidian exaples of minerals?
No. Pumice and obsidian are rocks composed mostly of glass.
Name 4 kinds of igneous rocks?
Examples of igneous rocks are pumice, obsidian, basalt, and rhyolite.
Are Scoria and Pumice pyroclastic rocks?
yes
List of igneous rocks?
basalt and pumice
Is pumice organic chemical or clastic?
None of the above. These terms are used to describe sedimentary rocks. Pumice is igneous.
Describe one use for the igneous rocks granite basalt and pumice?
granite: sismecology basalt: hyperbole pumice: your big fat butt
What rocks float?
Vessicular Rocks. Eg Scoria and Pumice.
Can pumice rocks float to the Florida coast?
Pumice rocks have been known to float across oceans.
Does pumice have calcite?
No. Pumice is a volcanic rock. Volcanic rocks do not contain calcite.
What type of rocks are pumice obsidian and granite?
Igneous rocks
How is pumice economically important?
It provides employment for those who gather volcanic rocks and profits for those who convert those rocks to pumice.
Is pumice and obsidian exaples of minerals?
No. Pumice and obsidian are rocks composed mostly of glass.
What are pumice rocks used for?
typically, Pumice rocks are used to scrape the rough areas of feet so that they are smooth
Name 4 kinds of igneous rocks?
Examples of igneous rocks are pumice, obsidian, basalt, and rhyolite.
Why do pumice rocks float?
it has holes in it and has kelfrigis
Is pumice used to polish other rocks?
NO
