A
Naturally occurring, inorganic solid with specific
chemical composition and crystalline structure
Mineral
Solid in which the atoms are arranged in repeating
patterns
Crystal
Molten material found beneath Earth’s crust
Magma
Mineral that contains silicon and oxygen
silicate
Mineral that contains a useful substance that can be
mined for profit
Ore
Valuable mineral prized for its rarity and beauty
Gem
_______ is the color of a mineral when it is broken up and powdered
Streak
The tendency of a mineral to break along a smooth, flat plane is called________.
Cleavage
is the measure of how easily a mineral can be scratched
Hardness
_____ is the tendency of a mineral to break with rough and daggered edges
Fracture
______________is the ratio of the mass of the mass of a substance divided by its volume (D=M/V).
Density
____________ is the most common measure of density
specific gravity
______ is the way a mineral reflects light from its surface, and is described as either metallic or non-metallic
Luster
What is the most abundant element in the Earth's crust ?
Oxygen
What is the most abundant element on earth?
Carbon
Large well shaped crystals tend to form from
magma that cooled slowly in an unrestricted place
Water, in its liquid form, is one of the most common substances on Earth, yet it isn't a mineral. Why?
it is a liquid
What are common minerals called?
rock-forming minerals
What is the numeric value of the hardest mineral on the Mohs hardness scale?
10
What element has an atomic number 12?
Magnesium
if a solution is nearly saturated with dissolved minerals, what will happen if 50% of the water in the solution evaporates?
crystals will form
Some fossils are preserved in limestone. Are these fossils minerals?
No, because they were once living
Why might mineral no longer be classified as an ore?
if it is no longer profitable
and
if the supply and demand changes
Why would a diamond excavator want to convert the diamond measurement from carats to grams?
grams are a part of the SI system
A mineral has a mass of 100 g and a volume of 50 cm3. What is its density(D=M/V)
2 g/cm3