What is meant by having a 'crystalline structure?' Define.
A special arrangement of the mineral's atoms.
List at least THREE qualities that makes gemstones unique & valuable.
translucent, durable, formed in rare places, special crystalline structure, colorful, sparkly :*), they can be cut & polished
Name ONE way minerals can form~ be descriptive!
Teacher will approve your answer, k?
Which one is not a major ORE that is mined in Idaho?
molybdenum
gold
calcite
silver
What type of LUSTER does this mineral have?
nonmetallic
submetallic
vitreous
metallic
What type of luster does this mineral show?
metallic
vitreous
waxy
submetallic
What GROUP of minerals is found more abundantly?
silicates!
Which is NOT a quality of a mineral?
inorganic
a solid
translucent (clear like a diamond)
formed naturally
Describe how you test for a mineral's hardness?
Scratch it on glass and if it leaves a mark, it's considered harder than a 5 on the MOH's scale.
What does a number 10 on the Moh's Scale tell you?
The mineral is hard.
When a mineral shows signs of even breaking along planes, it's called....
cleavage :*P
Whena mineral breaks unevenly along its edges it's called....
FRACTURE
Name the FOUR properties a mineral must have.
solid, inorganic (not living), formed naturally, crystalline structure
Ice Cubes. Explain WHY or WHY THEY ARE NOT considered minerals....
teacher approved answer again!
Why do you use a mineral's streak instead of just color?
The outside color may be affected by weather or oxidation while powder from the streak will remain true.
What makes a SILICATE mineral different from a NONSILICATE Mineral??
Silicate has to have BOTH oxygen and silica- while non silcates can have either one.
What is CC's favorite mineral?
magnetite
quartz
galena
obsidian
Which is NOT a place or description of how a mineral can form?
in hot water solutions
from the wind depositing minerals
from heat and pressure inside the earth
underneath the ocean in black smokers
Define RECLAMATION.
Putting the earth back to the same or better state after it is mined.
How do you measure density?
mass mulitplied by grams over volume
grams multiplied by mass
Volume divided by mass
Mass divided by volume
What type of luster does this mineral show?
nonmetallic
metallic
vitreous
submetallic