Deck 3: Geology and Mineralogy

Question 1

Quartz has hardness of 7 and will scratch on all the minerals with hardness 8 and higher.

A)true
B)false
C)can not say
D)none

Answer 1

false

Question 2

The common nesosilicate - single tetrahedron is

A)olivine
B)pyroxene
C)quartz
D)feldspar

Answer 2

olivine

Question 3

silicate structure is observed in clay minerals.

A)sheet
B)framework
C)isolated
D)single chain

Answer 3

sheet

Question 4

The layer that separates crust from core is known as

A)lithosphere
B)mantle
C)magma layer
D)solid inner core

Question 5

What derives the earth's internal heat engine ?

A)radioactivity
B)volcanoes
C)ocean tides
D)solar energy

Question 6

The minerals which could be scrached by finger nail will have hardness between

A)3 and 4
B)2 and 3
C)5 and 6
D)none of these

Question 7

Which of the following types of rocks could be the potential of metamorphic rocks ?

A)sedimentary
B)igneous
C)metamorphic
D)all of these

Question 8

If you have provided with same exact chemical composition two minerals, which one will form higher pressures ?

A)the mineral with greatest density
B)mineral with lowest density
C)mineral with lowest hardness
D)mineral with greatest hardness

Question 9

The term crust and lithosphere are same.

A)true
B)false
C)none.
D)none

Question 10

For the earth we are having static and stable earths crust.

A)true
B)false
C)none.
D)none

Question 11

Formation or development of long needle like crystals is known as

A)fibrous
B)radiating
C)columnar
D)acicular

Question 12

The relative capacity of substance to absorb or transmit light is known as

A)resinous
B)radiating
C)diaphaneity
D)none of these

Question 13

Igneous rocks with colour index as 0-30% of mathic materials which are light coloured are known as

A)hyper melanic
B)melanocratic
C)mesocratic
D)leucocratic

Question 14

Igneous rock with colour index as 60-90% of mathic materials which are dark coloured are known as

A)hyper melanic
B)melanocratic
C)mesocratic
D)lecucratic

Question 15

Igneous rocks which are very dark coloured are known as

A)hyper melanic
B)lecucratic
C)mesocratic
D)melanocratic

Question 16

The percentage of silica in ultrabasic type of igneous rock is

A)about 52-66%
B)over 66%
C)less than 45%
D)none of these

Question 17

In intermediate type of igneous rocks percentage of silica is

A)over 66%
B)about 52% to 66%
C)45% to 54%
D)none of these

Question 18

Percentage of silica in acidic igneous rock is

A)52% - 66%
B)45% -52%
C)less than 45%
D)none of these

Question 19

If shape of crystal is completely bounded by faces then it is

A)euhedral
B)anhedral
C)none of these
D)any of these

Question 20

Crystals which are better developed in two directions than third direction are known as

A)equidimensional
B)tabular
C)none of these
D)any of these

Question 21

The rock which is composed of entirely of crystals is known as

A)holocrystalline
B)holohyaline
C)mesocrystalline
D)none of these

Question 22

The rock which completely consist of glass is known as

A)holocrystalline
B)holohyaline
C)mesocrystalline
D)none of these

Question 23

The rock which consists of partly of crystals and partly of glass is known as

A)holocryslalline
B)holohyaline
C)mesocrystalline
D)none of these