Glossary
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crystal -
matter that is arranged in an orderly and recognizable pattern of atoms,
molecules or ions |
| hollow - empty or not solid.
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supersaturation - to cause a
solution to be more concentrated than is usually possible
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| minerals-naturally
occurring, inorganic solids with a defined chemical formula |
sedimentary
rock:
rock formed by the build up of sediments deposited by
water on river, lake, or ocean floors which build up layers over time and with
pressure from the weight causes sediment to turn into rock.
iron oxide:
chemical compounds composed of iron and oxygen
carbon: a
chemical element. It contains six protons, six neutrons, and it also has six
electrons in orbit
lithosphere:
the
solid
portion of the earth-the
crust.
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http://www.pokescope.com/geology/CaveMinerals.jpg |
Cave
Minerals
Close your eyes and imagine you are
surrounded by the stuff of legends-a dragon's lair? Minerals are the
gems of the earth. Hidden in the dark recesses of tunnels waiting to be
discovered are the deposits of millions of years, the earth's treasure
chest. Found in their pure form these are unique natural
formations that hold visible connections to the history of our Earth.
They help tell the mysteries of the Earth's past.
Cave minerals are located in hollow
passages, under the earth's surface. Cave minerals are natural
substances that can sometimes look like a crystal. But, they can also appear as sand, salt, stone, an icicle, or even
dark, solid uninteresting stone slick with the accumulation of slowly
dripping water. Cave minerals can be formed when dehydration occurs, or when
something soaks up its water and moisture. Or, if they can be formed by
supersaturation. Cave minerals are an important part of a cave.
They are what makes a cave look special and unique!
There
are many types of minerals that are found in caves. Both the caves and the minerals
that are found in them are formed by different forces such as water
and weathering. These changes effect the shape, size, and historic
information about each and every mineral.
Limestone is a piece of
sedimentary rock. It is originally white but by the help of iron
oxide and carbon , limestone can either
be brown, yellow, red, blue , black, or even gray. The texture of the
limestone can vary from coarse to fine. It all depends
on the different reactions it receives. Many pieces of limestone are
formed from the skeletons and shells of marine creatures millions of
years ago. You may have heard of a variation of limestone called marble.
This is when limestone is changed through the forces of the earth and "recrystallizes."
Limestone varies in hardness and density so that some can be really soft
while others are much denser and be polished. In caves limestone has
been "nibbled" away at by acid in rainwater which gradually eats away
enlarging fissures. Some cave are primarily limestone. This is one form
of caves that may take a few thousand years rather than others which
reveal millions of years of weathering.
Calcite crystals are formed under water when caves
get filled with solutions .Crystals similar to calcite were grown in
laboratories .There are over 300 different types of calcite known today.
These crystals are known to be as big as doorknobs. The crystals that are
sharper are known as dogtooth spar. The rounded crystals are known
as nailhead spars. Calcite has gotten its name from the word chalix, which is the
Greek word for lime. Calcite is the most common mineral on the face of the earth. It
also comprises about 4% of the earth's weight of
the earths' lithosphere. Calcite can form rocks
of considerable mass. Calcite is formed
by many different earthly surroundings. It consists of
very large parts of the three rock classifications.
Glauberite is a hard, translucent mineral. It is made of soda
and lime, which helps it to heal and treat stomachaches .It is also used
to help and smoothen the digestive system. Glauberite is just like
limestone in a peculiar way , it gets dissolved in water and the texture
is almost the same.
Arcanite was first identified in 1845.The Latin name for Arcanite
is Double Secret because this mineral is only found in hidden
places. The most common caves that Arcanite is found in are the Saudi
caves.
Palygorskite is a type of clay that's
rave and looks very funny. It is a dark polo red, and feels spongy and
slimy. It is sometimes called mountain leather because it feels
like wet leather. Palygorskite resembles dirty rags and chewed up
cardboard.
Gypsum can come in many
different colors such as gray , red
, brown or yellow. Sometimes it could also be colorless. This mineral can
grow so big that they could be larger than humans! These
minerals are much warmer
than ordinary rocks and are very delicate. Because of there delicacy
they can easily be scratched by just a simple scratch
by your fingernail. Gypsum can even
be fluorescent.
You walk out of the cave. You remember every translucent
and opaque mineral you saw. Getting prepared to tell the scientists and
the world, what you have found and learned you turn around, to
take your last glance at the minerals inside the cave. You see hundreds
of glittery flakes shining at you! Blinking constantly hoping you got
their life changing messages telling you of all their historical information
and physical features.
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http://www.exceptionalminerals.com/TUC2004-477vanadinite.jpg

http://www.clarelibrary.ie/eolas/coclare/places/the_burren/images/minerals.jpg

http://www.kwikwap.co.za/vall/photos/rocks and minerals.jpg

http://geology.com/nasa/carbonate-minerals/carbonate-minerals.jpg
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