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Minerals Flashcards | StudBud
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Minerals
Minerals
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StudBud Administration
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Covers concepts in 8th grade Earth Science unit over minerals.
Flashcards
18 cards
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Practice quiz
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Questions
18
Answers
1
The tendency of minerals to break with a rough, or jagged edges is called?
pop
crackle
snap
fracture
2
This is the hardest known mineral
Gypsum
Lawton's mineral test
Diamond
Talc
3
Geologists have identified how many minerals?
400
4,000
118
10,000
4
Minerals are formed under what two conditions?
Cooling magma/lava and from solutions
Wet and Dry conditions
Fresh water and salt water
Hot and cold conditions
5
Unglazed porcelain is used to test a minerals?
colour
streak
all of these
luster
6
What is an alloy?
A metal found in its pure form
A mixture of two elements, one of which is a metal
A type of metal with no crystal structure
A type of metal with a very high density
7
"A mineral has a definite chemical composition" This means . . . ?
The same elements are used in its composition.
It has a variety of elements in its composition
The elements may change if it is found in different places
No one definitely knows!
8
A mineral is a solid that comes from what kind of matter?
inorganic
synthetic
organic
radioactive
9
I'm the only mineral!
Water
Soil
Bone
Salt
10
Geologists have identified how many mineral crystal systems?
4,000
47
6
118
11
What is name given to the scale that measures hardness?
Larry's
Mohs
Curly's
Nuk-Nuk
12
What are the two types of luster?
Shiny/Dull
Metallic/Non-metallic
Rough/Smooth
Organic/Non-organic
13
Graphite and diamonds are both pure carbon-why is graphite so soft, a diamond so hard?
Atomic bonds are different
Diamonds are really valuable, this why they are so hard?
Different types of carbon
Only the "soft" type of graphite is used in pencils
14
Amber is used in jewelry, formed from prehistoric pine sap; Is it a mineral?
It depends on the type of pine tree!
No, it isn't!
Yes, it is!
15
The cut and polished flat surfaces of a jewels are called?
facets
faces
reflectors
mirrors
16
Crystal systems are the result of these in repeating patterns.
Silicates
Solutions
Chemical properties
Atoms
17
What occurs during crystallization?
Atoms are arranged in repeating patterns
Atomic bonds are cracked
Crystals are destroyed
Compounds fight with elements
18
The measure of how easily a mineral can be scratched is called?
Luster
Fracture/Cleavage
Streak
Hardness
