Main article: Metamorphic rock ... Hornfels - a metamorphic rock formed by
heating by an igneous rock: Marble - a ... rock with a protolith of quartz-rich (
sandstone) sedimentary rock: Pseudotachyli...
Photographs and information for a large collection of igneous, metamorphic and
sedimentary rocks. Geology.com.
Igneous Rocks. Igneous rocks are crystalline solids which form directly from the
cooling of magma. ... There are three main types of sedimentary rocks: Clastic:
your ... Click here for more on metamorphic processes and rocks (RCC). Click
The Rock Gallery contains pictures and descriptions of common igneous
metamorphic sedimentary rock. The igneous rocks are listed at the top of the
By Andrew Alden , About.com GuideJanuary 18, 2004
Here's a new three-part article on one of the most basic things in geology: the three great classes of rocks
. And metamorphic rocks
come from the other two rock
types when Earth gets its hands on them. The rock
cycle s... More »
Three basic types of rocks are: igneous, sedimentary, metamorphic. Also on this
site find everything about physical and optical properties of stones and minerals.
OBJECTIVES: Comparing sedimentary, igneous, and metamorphic rocks.
Exploring the etymology of sedimentary, igneous, and metamorphic.
Apr 15, 2012 ... visit http://www.makemegenius.com for more Free science videos for kids.
The three types of rocks—igneous, sedimentary, and metamorphic—are all
subject to processes that change one rock type into another. The images below
Metamorphic Rocks. Sometimes sedimentary and igneous rocks are subjected to
pressures so intense or heat so high that they are ...