Question 1 The non-metallic mineral with a hardness of 4 and perfect octahedral
ID: 111274 • Letter: Q
Question
Question 1
The non-metallic mineral with a hardness of 4 and perfect octahedral cleavage is
fluorite
magnetite
pyrrhotite
dolomite
Question 2
Which of the following are not a minerals?
orthoclase
albite
sanidine
microcline
perthite
anorthite
bauxite
Which of the following are polymorphs?
orthoclase
albite
sanidine
microcline
perthite
anorthite
Question 4 Match the following feldspars with their chemistry
albite
orthoclase
anorthite
plagioclase
A.
K-feldspar
B.
Ca-feldspar
C.
Na-feldspar
D.
feldspar with a mixture of Na and Ca cations
A specimen of haematite was found to weigh 780g and displaced 0.15 litres of water. What is the S.G. of the haematite?
0.117
5.2
0.19
6.3
Question 6
The sharing of electrons is known as
ionic bonding
covalent bonding
metallic bonding
van der Waal bonding
Question 7
Match the following minerals with their mineral groups
augite
hornblende
microcline
forsterite
A.
amphibole
B.
olivine
C.
pyroxene
D.
feldspar
does anyone know the answers for this quick quiz? thank you
fluorite
magnetite
pyrrhotite
dolomite
Explanation / Answer
ANSWER:
1) The non-metallic mineral with a hardness of 4 and perfect octahedral cleavage is fluorite
2) Bauxite
3) Sanidine
4) Albite - Na-feldspar
orthoclase - K-feldspar
anorthite - Ca-feldspar
plagioclase - feldspar with a mixture of Na and Ca cations
5) Given,A specimen of haematite was found to weigh 780g and displaced 0.15 litres of water.
haematite = 780g
Water = 0.15 L = 150 Millilitres
S.G.= 780/150 = 5.2
6) The sharing of electrons is known as covalent bonding
7) Augite - pyroxene
Hornblende- amphibole
Microcline - Feldspar
Forsterite - olivine
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