Unit 2
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The shape of a crystal comes from?
Their Structure
What are the most common elements on earth crust?
Oxygen and silicon
Mineral definition ( in earth and space)?
A substance that has specific characteristics
Every mineral has a specific chemical compound? (T or F)
True
What do geologists use to identify and classify minerals?
Properties(color, texture, etc)
What is a native mineral?
The are crystals of a single element
The most abundant mineral in earths crust is?
Silicates
Size of a crystal is determined by?
How fast the magma cools or hardens
What is a silicate made of?
Oxygen and silicon
Luster?
a description of the way the mineral reflects light.
Transparency?
a measure of the amount of light that the mineral absorbs or allows to pass through.
Shape?
A property that is easy to examine is a mineral’s overall shape and how it normally appears in nature.
Color?
a function of the wavelengths of light that the mineral reflects.
Streak?
the color of a mineral in its powdered form
Cleavage?
is the tendency of a mineral to split along a flat plane.
Fracture?
Name for when minerals break
Hardness?
the strength of the bonds between atoms within the crystal.
Saturation?
full to capacity
Precipitate?
something comes out of a saturated solution
Crystalize?
harden