Earth, Minerals - Part 2: Question Preview (ID: 4512)

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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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