Category: Rock and Mineral Posts

The Hardest rock on earth are metamorphic type rocks and the hardest mineral on earth is diamond.  Metamorphic rocks are known to be the hardest as they are rocks with a high concentration of...

Many have the question if ice falls into the category of being a rock or a mineral.  Some of that confusion comes from people not knowing what the definition of a rock is and...

The softest rock on earth is sedimentary type rock and the softest mineral on earth is talc.  Sedimentary rocks are known to be the softest as they are held together more loosely than metamorphic...

Every once in a while we stumble onto an interesting rock while being outdoors.  Many of us do not have enough information on what we have found and if it is valuable.  In short,...

Most fossils are found in sedimentary rock because the fossils are not destroyed by high temperatures and high pressure.  Fossils will be entombed in sediment which preserve them as the sedimentary rock forms through...

Identifying a rock or mineral can be difficult for many.  Even the most seasoned veteran can get stumped every once and awhile at a specimen they have found or acquired.  Not to worry though,...

Our earth contains many different examples of minerals that most people could not even come close to naming them all.  Some of the best examples of minerals may actually be known to most, but...

Sedimentary rocks are rocks that are created through sediment which is pressurized and heated as it pushes deep into the earth.  The sediment for these rocks are pieces from other rocks, which can be...

When it comes to igneous rocks we can differentiate them from sedimentary and metamorphic rocks in a couple of ways.  The key difference to note is that Igneous rocks form from the cooling of...