[DOC] [TLE] Pumice: Igneous Rock - Pictures, Definition & More - Geology.com [PAR] Pumice is a light-colored, extremely porous igneous rock that forms during 
explosive ... as landscaping aggregate, and as an abrasive in a variety of 
industrial and ... were trapped in the rock during the rapid cooling of a gas-rich 
frothy magma. .... types of shale under controlled conditions, is used as a 
substitute for pumice in... [DOC] [TLE] Igneous Rocks | Pictures of Intrusive and Extrusive Rock Types [PAR] Photos of Common Intrusive and Extrusive Igneous Rock Types. Andesite ... 
These rocks include andesite, basalt, obsidian, pumice, rhyolite, scoria, and tuff. 
... volcanic glass that forms from the very rapid cooling of molten rock material. ... 
It often contains rare minerals that are not found in other parts of the magma 
chamber. [DOC] [TLE] Igneous Rocks [PAR] Both magma and lava cool and harden to form igneous rocks. Lava vs. ... Some 
extrusive rocks, such as obsidian and pumice, cool so rapidly that they ... igneous 
rocks can be broken into four main types: felsic, intermediate, mafic and 
ultramafic. ... Sedimentary rocks are formed when the clastic or chemical particles 
stick... [DOC] [TLE] The types of rock: igneous, metarmorphic and sedimentary [PAR] Jan 12, 2015 ... The three main types of geological rocks are described. ... Igneous; they form 
from the cooling of magma deep inside the earth. ... Sedimentary; they are formed 
through the solidification of sediment. ... However, volcanic rocks can be 
incredibly lightweight  pumice for example can even float, and was called... [DOC] [TLE] Chapter 4 Rocks and Minerals - Volcano World [PAR] Chapter 4 focuses on Rocks and Minerals, looking at types of rocks. ... Granite 
was formed when magma cooled slowly forming crystals of the four ..... Some of 
the more common types of extrusive igneous rocks are lava rocks, cinders, 
pumice,... [DOC] [TLE] Rock Key [PAR] What Types of Rocks Are There? ... Basalt, Diabase, Diorite, Gabbro, Granite, 
Obsidian, Pumice, Rhyolite, Scoria ... There are three different types of rock: 
Igneous Rock is formed when a magma cools underground and crystallizes or 
when it... [DOC] [TLE] Metamorphic Rock [PAR] There are three major types of rock: igneous rock, metamorphic rock, and 
sedimentary rock. During ... Crystallization is the process by which magma cools 
and forms solid rock. ... Pumice is yet another kind of rock formed from hardened 
lava. [DOC] [TLE] Igneous Rock Facts for Kids - Information & Examples [PAR] Igneous rock is formed when magma cools and solidifies, it may do this above or 
... There are over 700 different types of igneous rocks. Examples of igneous rocks 
include basalt, granite, pumice, obsidian, tuff, diorite, gabbro and andesite. [DOC] [TLE] The Rock Cycle PPT [PAR] Shale rock is a type of sedimentary rock formed from clay that is compacted 
together by ... Pumice rocks are igneous rocks which were formed when lava 
cooled... [DOC] [TLE] Volcanic rock - Wikipedia [PAR] Volcanic rock is a rock formed from magma erupted from a volcano. In other 
words, it differs from other igneous rock by being of volcanic origin. Like all rock 
types, the concept of volcanic rock is artificial, and in nature ... trapped in the 
molten lava. Pumice is a highly vesicular rock produced in explosive volcanic 
eruptions. [DOC] [TLE] Igneous Rocks: How Are They Formed? - Universe Today [PAR] Dec 21, 2015 ... When it comes to the composition of the Earth, three main types of rock come ... 
Intrusive igneous rock is formed when magma cools and solidifies within ... 
Extrusive igneous rocks include andesite, basalt, obsidian, pumice,... [DOC] [TLE] How Are Rocks Formed? - Universe Today [PAR] Apr 26, 2016 ... In all, there are three types of rocks: igneous, sedimentary, and metamorphic. ... 
Igneous rocks are formed when melted rock cools and solidifies. ... Pumice, for 
instance, is formed when lava made up of melted rock, water, and... [DOC] [TLE] Types of volcanic rock | Sciencelearn Hub

Question: Pumice is a variety of this type of rock formed when lava cools
Answer: Igneous