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A naturally occurring solid mixture of one or more minerals and organic matter.

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A naturally formed, inorganic solid that has a definite crystalline structure

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inogrganic-not made from the
reamains of something that
was once-living

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-Is it made from a living or once living things?
-Is it a solid?
-Is it formed naturally on Earth?
-Does it have a crystal Structure?

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-Elements: pure substance that cannot be broken down into simpler substances

-Atom: the smallest part of an element that has all of the properties of that element

-Compound: Substance made of 2 or more elements that have been chemically joined in a set ratio.

-Molecule: the smallest part of a compound that has all the properties of that compound.

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Is a solid whose atoms are arranged in definite pattern.

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Halite, NaCL is a compound made from the combination of sodium atoms (purple) and chlorine (green) atoms. it is a cubic crystal structure

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1.crystals are too small to see due to rapid growth
2. the crystals of a mineral will grow into and through each other when they run out of room.

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diamonds and graphite (a.k.a
pencil lead) are both from the
element carbon did you know the only things

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1. rocks can have organic matter.
2. rocks do not have a set proportion of particles to make a crystal pattern.

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luster the way the minerals surface reflects light.

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streak the color of the mineral in
powdered form
unlike color streak is not affected by surface tarnish

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hardness a minerals resistance to being scratched
mohnś hardness scale
10. diamond
9.corundum
8.topaz/beryl
7.quartz
6.

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cleavage tendency to break along smooth flat surfaces due to the crystal shape

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the color of a mineral can give a clue as to what mineral you have .color is not always reliable for two reasons first it can be affected by surface tarnish

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third some minerals colors are so close that it can be deceiving
which of these samples below is gold

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density with no units it is called specific gravity can help us determine whitch mineral we have minerals containing some metallic elements

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special properties can help us also identify minerals these properties may be specific to a few minerals but offen require special equment
a few special properties are show
below radioactivity taste optical properties