Earth, Minerals - Part 2 Question Preview (ID: 4512)
Minerals.
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The softest mineral on the Mohs scale is:
a) talc
b) gypsum
c) apatite
d) quartz
Brick, steel and glass are not classified as minerals because:
a) they are not naturally occurring
b) they are organic
c) they are too hard
d) they have many uses
A mineral with a hardness of 6 will scratch a mineral with a hardness of more than 6
a) false - the softer will be scratched
b) true
c)
d)
Minerals come from organic materials
a) False - organic means it must be or have been living, minerals are inorganic
b) True
c)
d)
Halite crystals form when a solution of water and salt condenses
a) True
b) False
c)
d)
The faster magma cools, the smaller the crystals formed
a) True
b) False - faster makes small crystals, slower makes larger crystals
c)
d)
The splitting of a mineral along flat surfaces is:
a) cleavage
b) fracture
c) density
d) broken
Atoms of a mineral are arranged in repeating patterns forming:
a) crystals
b) fracture
c) cleavage
d) organic matter
Talcum powder is made from the very soft mineral called:
a) Talc
b) Gypsum
c) Talcum
d) Quartz
If Lava is above the ground but if it is below the ground it is called:
a) magma
b) lava
c) slush
d) gunk
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