What Is the Softest Rock on Earth?

Answer

The softest rock on earth is soapstone, which is considered as metamorphic rock. It is mostly made up of talc and magnesium. It is found in places where there are extensive tectonic movements.
Q&A Related to "What Is the Softest Rock on Earth?"
talc is the softest rock in the world while diamond is the hardest rock.
http://wiki.answers.com/Q/What_is_the_softest_rock...
One of the softest fabrics on earth is
http://www.chacha.com/question/what-is-the-softest...
Talc is the softest rock. Its classified as a 1 out 10 (1 is softest) on Moh's hardness scale.
http://www.kgbanswers.com/fwd-what-is-jthe-softest...
Sandstone is a clastic sedimentary rock. As the name implies, it is essentially sand cemented into stone. There is considerable variability in sandstone, and some of that variability
http://www.ehow.com/info_8575813_majority-rocks-ea...
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