Q1: Among the minerals listed below, which one has the highest silica content?
A. Olivine
B. Biotite
C. Albite
D. Pyroxene
Q2: The most common mineral found on the earth's surface is
A. Feldspar
B. Muscovite
C. Quartz
D. Biotite
Q3: Sheet silicates are considered as tri-octahedral if they have
A. Al in tetrahedral site
B. only Si in tetrahedral site
C. divalent ions in tetrahedral site
D. divalent ions in octahedral site
Q4: Match minerals in Group I with the corresponding silicate structure in Group II.
Group I Group II
(i) Anthophyllite (P) Cyclosilicate
(ii) Hedenbergite (Q) Tectosilicate
(iii) Cordierite (R) Double chain silicate
(iv) Zeolite (S) Single chain silica
A. i- R; ii - S; iii-Q; iv - P
B. i-S; ii - R; iii - Q; iv - P
C. i- R; ii - S; iii - P; iv - Q
D. i-P; ii-Q; iii - R; iv – S
Q5: Which of the following minerals are built from the independent silicate structure?
A. Olivine
B. Pyroxene
C. Amphibole
D. Quartz
Q6: Silica-unsaturated minerals are
(A) Nephline and albite
(B) Olivine and enstatite
(C) Leucite and orthoclase
(D) Olivine and leucite
Q7: Quartz can be optically distinguished from nepheline based on
A. Relief
B. Optic Sign
C. Birefringence
D. Extinction Angle
Q8: Match the feldspar mineralogy of sandstone with the most likely provenance.
I. Orthoclase P. nepheline syenite
II. Ca-rich plagioclase Q. granites & pegmatites
III. Sanidine R. rhyolite
IV. Na-rich plagioclase S. basalt
A. I-S. II-P. III - Q, IV - R
B. I-Q, II - R. III-P, IV - S
C. I-Q, II- S. III - R. IV - P
D. I-R, II-S, III-P, IV – Q
Q9: A mineral has steel-grey colour, metallic lustre, two sets of perfect octahedron cleavage and very high specific gravity. The mineral is
A. Galena
B. Molybdenite
C. Magnetite
D. Barite
Q10: Of the following, pick the mineral that is not associated with pegmatites
A. Mica
B. Emerald
C. Feldspar
D. Kyanite
Q11: Which one of the following is not a set of polymorphous minerals?
A. Calcite, Aragonite, Vaterite
B. Quartz, Coesite, Tridymite
C. Graphite, Anthracite, Diamond
D. Kyanite, Sillimanite, Andalusite
Q12: Which one of the following clay minerals contain potassium(K)?
A. Illite
B. Kaolinite
C. Montmorillonite
D. Vermiculite
Q13: Which one of the following sequences of minerals correctly list an increasing rate of dissociation during chemical weathering?
A. Olivine-Quartz-Pyroxene-Orthoclase
B. Quartz-Orthoclase-Pyroxene-Olivine
C. Olivine-Pyroxene-Orthoclase-Quartz
D. Quartz-Olivine-Orthoclase-Pyroxene
Q14: Match the following
Group I Group II
P. Carlsbad 1. Rutile
Q. Pericline 2. Quartz
R. Brazil 3. Orthoclase
S. Geniculated (elbow) 4. Plagioclase
A. P-3, Q-4, R-2, S-1
B. P-3, Q-1, R-2, S-4
C. P-2, Q-4, R-1, S-3
D. P-2, Q-1, R-3, S-4
Q15: The difference between Si/O ratios of K-feldspar and olivine is _______?
A. 1/2
B. 1/3
C. 1/4
D. 2/3
Q16: The ratio of bridging to non-bridging oxygen atoms is zero in case of
A. Nesosilicate
B. inosilicate
C. phyllosilicate
D. tectosilicate
Q17: Which one of the following SiO2 polymorphs may form because of meteorite impact?
A. Quartz
B. Tridymite
C. Opal
D. Stishovite
Q.18: Match the rocks in Group I with their essential mineral assemblages in Group II.
Group I Group II
P. Granodiorite 1. Hornblende-plagioclase
Q. Harzburgite 2. Plagioclase-quartz
R. Gabbro 3. Olivine-orthopyroxene
S. Diorite 4. Clinopyroxene-plagioclase
A. P-2; Q-3; R-4; S-1
B. P-3; Q-4; R-1; S-2
C. P-4; Q-1; R-3; S-2
D. P-1; Q-3; R-2; S-4
Q.19 Which one of the following mineral assemblages is stable under eclogite facies conditions?
A. Garnet-orthopyroxene-clinopyroxene-plagioclase
B. Garnet-clinopyroxene-plagioclase-kyanite
C. Garnet-orthopyroxene-hornblende-plagioclase
D. Garnet-clinopyroxene-kyanite-quartz
Q20: Which one of the following statements is CORRECT in all respects for the amphibole glaucophane, Na2Mg3Al2Si8O22(OH)2 ?
A. Na is in the M4-site, Al is in octahedral coordination and Si is in tetrahedral coordination.
B. Na is in the A-site, both Al and Si are in tetrahedral coordination.
C. Na is in the M4-site, Al is partly in octahedral and partly in tetrahedral coordination, Si is in tetrahedral coordination.
D. Na is in the A-site, both Al and Si are in octahedral coordination.
Q21: Which of the mineral have poor cleavage in all directions ?
A. Fluorite
B. Orthoclase
C. Quartz
D. Muscovite
Q22: In COUPLED SUBSTITUTIONS: Na+1 replacing Ca²+ in feldspar. To maintain the charge balance_______
A. Al replaces Si
B. Si replaces Al
C. Al replaces Ca
D. Si replaces O
Q23: The cross-section of amphibole is _______shaped and that of pyroxene is ________shaped respectively.
A. Diamond and Diamond
B. Diamond and Square
C. Square and Diamond
D. Square and Square
Q24: Which of the following is brittle mica ?
A. Muscovite
B. Paragonite
C. Margarite
D. Lepidolite
Q25: Crystal system of Tridymite and Cristobalite are respectively _______ and ______ ?
A. Tetragonal and Orthorhombic
B. Orthorhombic and Tetragonal
C. Hexagonal and Tetragonal
D. Hexagonal and Hexagonal
Q26: Match the following.
A. Rock crystal (Quartz) i. Voilet colour
B. Amethyst ii. Colorless
C. Citrine iii. Light yellow
D. Prase iv. Dull green colour
A. A-ii, B-i, C-iii, D-iv
B. A-ii, B-i, C-iv, D-iii
C. A-iv, B-i, C-ii, D-iii
D. A-iv, B-i, C-iii, D-ii
Q27: Piezoelectric property is produced due by the effect of _______.
A. Temperature
B. Pressure
C. Magnetism
D. Both Temperature and Pressure
Q28: Which of the following minerals belong to the oxide group?
A. Pyrite
B. Hematite
C. Calcite
D. Apatite
Q29: Which of the following minerals are built from the framework silicate structure?
A. Olivine
B. Pyroxene
C. Amphibole
D. Quartz
Q30: Which is the second framework silicate mineral in Moh’s scale of hardness.
A. Quartz
B. Topaz
C. Orthoclase
D. Talc
Q31: The absolute difference between the hardest silicate minerals and softest silicate minerals in mohs scale of hardness is_____.
A. 9
B. 1
C. 7
D. 3
Q32: Which of the following minerals display one direction of well-developed cleavage?
A. Quartz
B. Calcite
C. Biotite
D. Pyroxene
Q33: Which one of the following sequences of silicate structures indicates an increasing degree of sharing of corners of (SiO4)4- tetrahedra?
A. Nesosilicate →Single-chain inosilicate → Phyllosilicate → Tectosilicate
B. Tectosilicate → Phyllosilicate → Single-chain inosilicate → Nesosilicate
C. Nesosilicate → Phyllosilicate → Single-chain inosilicate → Tectosilicate
D. Single-chain inosilicate → Nesosilicate → Phyllosilicate → Tectosilicate
Q34: Which one of the following minerals has isolated (SiO4) 4– tetrahedra linked by divalent cations in octahedral coordination?
A. Muscovite
B. Quartz
C. Beryl
D. Olivine
Q35: The texture characterized by exsolved lamellae of albite in K-feldspar is known as
A. Myrmekite
B. Graphic
C. Perthite
D. Antiperthite
Q36: Match the minerals in Group-I with their optical properties in Group-II.
Group I
P. Calcite
Q. Nepheline
R. Apatite
S. Quartz
Group II
1. Uniaxial negative, low birefringence, high relief
2. Uniaxial negative, high birefringence, moderately high relief
3. Uniaxial positive, low birefringence, low relief
4. Uniaxial negative, low birefringence, low relief
A. P-4; Q-2; R-1; S-3
B. P-3; Q-2; R-4; S-1
C. P-2; Q-4; R-1; S-3
D. P-1; Q-3; R-2; S-4
Q37: Among the following, the mineral showing acicular habit is
A. Kyanite
B. Tourmaline
C. Biotite
D. Sillimanite
Q38: Which of the following statement is not correct ?
A. An isotropic mineral remains dark through 360o rotation of stage under crossed polars
B. Pleochroism is the change of colour of a mineral during rotation under plane polarized light
C. Minerals of the Triclinic system are optically uniaxial
D. Melatope in an interference figure marks the emergence of an optic axis
Q39: The correct order(s) of stability of silica polymorphs with increasing pressure is
A. Quartz – Coesite – Stishovite
B. Quartz – Stishovite – Coesite
C. Coesite –Tridymite-Stishovite
D. Tridymite – Stishovite – Coesite
Q40: Which of the following mineral assemblages characterizes blueschist facies metamorphism of a mafic rock?
A. Glaucophane + lawsonite
B. Hornblende + plagioclase ± epidote ± garnet
C. Omphacite + garnet
D. Phengite + chlorite + garnet