Sand sized Grain's
What is Sandstone
what sedimentary rock are diamonds made of?
what is coal
What is this igneous rock that is known as the volcanic glass?
What is Obsidian
What is a sedimentary rock that forms when iron and oxygen combine
What is iron ore
I am an igneous rock, I form mostly as an extrusive igneous rock, and I underlie more of Earth's surface more than any other rock type.
What is Basalt.
An Important Fossil Fuel
What is Coal
A foliated metamorphic rock that has a banded appearance and is made up of granular mineral grains.
what is gneiss
A fine grained, dark-colored, extrusive igneous rock composed mainly of plagioclase and pyroxene
What is Basalt
What is a sedimentary rock that is formed in the ocean or saline lake waters
What Rock salt
I am a metamorphic rock, I can be used for statues, and there can be ruby's in me.
What is Marble.
It forms where water, wind, or ice deposit
What is Siltstone
what is the famous blue gem material that is a metamorphic rock?
what is lapis lazuli
A course grained, light colored, intrusive igneous rock that contains mainly quartz, feldspar, and mica minerals, and can also be used for countertops.
What is granite
What is a fine grained nonfoliated meatamorphic rock with no special composition
what is hornfels
I am a metamorphic rock, people have quarried me for thousands of years, I am one of the first rocks to be quarried, and it is gray, bluish green, or brown in color.
What is soapstone.
what is a clastic sedimentary rock that contains rounded particles larger than 2 centimeters
what is a conglomerate rock
what is a non-foliated metamorphic rock that is created by lime stone?
what is marble
a light-colored vesicular igneous rock. It forms through very rapid solidification of a melt.
What is pumice
What is a metamorphic rock with well developed foliation and has significant amounts of mica
What is schist
I am a term most often used for a clastic sedimentary rock, I form where broken, angular fragments of rock or mineral debris accumulate, and I can be any color.
What is Breccia.
what is a hard, tough, chemical or biochemical sedimentary rock that breaks with a conchoidal fracture?
What is flint
What is slate
A dark-colored, vesicular, extrusive igneous rock. The vesicles are a result of trapped gas within the melt at the time of solidification.
What is Scoria
What is an igneous rock sometimes found in rhyolite
What is a fire opal
I am a foliated metamorphic rock, I usually form by regional metamorphism at convergent plate boundaries, and I can form in many several different ways.
What is Gneiss.