Exam Details
| Subject | minerology and optics | |
| Paper | ||
| Exam / Course | m.sc. applied geology | |
| Department | ||
| Organization | solapur university | |
| Position | ||
| Exam Date | March, 2018 | |
| City, State | maharashtra, solapur |
Question Paper
M.Sc. (Semester (CBCS) Examination Mar/Apr-2018
Applied Geology
MINERALOGY OPTICS
Time: 2½ Hours
Max. Marks: 70
Instructions: Answers any five questions. All questions carry equal marks. Question 1 is compulsory. Answer any two essay questions from Q.2, 3 4. Answer any two short notes questions from Q.5, 6 7. Draw neat and labeled diagrams wherever necessary.
Q.1
Fill in the blanks with correct answer:-
14
A single isogyre forms in the biaxial interference figure, it indicates figure.
Optical normal
Optic axis
Acute bisectrix
Obtuse bisectrix
Ruby and Sapphire are son variety of
Corundum
Beryl
Garnet
Topaz
The source rock for diamonds is
Peridotite
Kimberlite
Granite
Rhyolite
Which of the following is polymorphy of Calcite?
Siderite
Aragonite
Diopside
None
An acute angle made by optical plane with x-crystal graphic plane is called as
Optically positive
Optically negative
Optically neutral
None
Find the odd man out
Diopside
Enstatite
Tremolite
Hypersthenes
Heulandite belongs to group of minerals.
Mica
Zeolite
Clay
Pyroxene
The high temperature monoclinic alkali felspar is
Orthodox
Sanidine
Microcline
Albite
Find the odd man
Sodalite
Leucite
O
Nosean
Nepheline
10) Which of the following is a trioctahedral lithium mica?
Lepidolite
Muscovite
Paragonite
Biolite
Page 2 of 2
SLR-UB-30
11) Twins have twin axis normal to a crystal face and this face is parallel to compositional plane.
Parallel Twin
Complex Twin
Normal Twin
None
12) Which of the following is basic negative mineral?
Kyanite
Tremolite
Sillimanite
Both a b
13) Which one of these is also known as glimmer plate?
Quartz plate
Mica plate
Gypsum plate
Calcite plate
14) Which of the following is used to ascertain perfect extinction position?
Mica plate
Gypsum plate
Quartz wedge
None
Q.2Describe uniaxial and biaxial ellipsoid with corresponding interference figures.
14
Q.3Describe crystal structure, chemistry, paragenesis of Actinolite -Tremolite -Minerals.
14
Q.4Describe crystal structure, chemistry, paragenesis of feldspathoids.
14
Q.5Write note
14
Clinopyroxene and orthopyroxene
2V angle and optic sign
Q.6Explain in short:-
14
Polymorphs of alumino silicates
Sign of elongation
Q.7Write note
14
Silicate structure
Clay mineral chemistry structure
Applied Geology
MINERALOGY OPTICS
Time: 2½ Hours
Max. Marks: 70
Instructions: Answers any five questions. All questions carry equal marks. Question 1 is compulsory. Answer any two essay questions from Q.2, 3 4. Answer any two short notes questions from Q.5, 6 7. Draw neat and labeled diagrams wherever necessary.
Q.1
Fill in the blanks with correct answer:-
14
A single isogyre forms in the biaxial interference figure, it indicates figure.
Optical normal
Optic axis
Acute bisectrix
Obtuse bisectrix
Ruby and Sapphire are son variety of
Corundum
Beryl
Garnet
Topaz
The source rock for diamonds is
Peridotite
Kimberlite
Granite
Rhyolite
Which of the following is polymorphy of Calcite?
Siderite
Aragonite
Diopside
None
An acute angle made by optical plane with x-crystal graphic plane is called as
Optically positive
Optically negative
Optically neutral
None
Find the odd man out
Diopside
Enstatite
Tremolite
Hypersthenes
Heulandite belongs to group of minerals.
Mica
Zeolite
Clay
Pyroxene
The high temperature monoclinic alkali felspar is
Orthodox
Sanidine
Microcline
Albite
Find the odd man
Sodalite
Leucite
O
Nosean
Nepheline
10) Which of the following is a trioctahedral lithium mica?
Lepidolite
Muscovite
Paragonite
Biolite
Page 2 of 2
SLR-UB-30
11) Twins have twin axis normal to a crystal face and this face is parallel to compositional plane.
Parallel Twin
Complex Twin
Normal Twin
None
12) Which of the following is basic negative mineral?
Kyanite
Tremolite
Sillimanite
Both a b
13) Which one of these is also known as glimmer plate?
Quartz plate
Mica plate
Gypsum plate
Calcite plate
14) Which of the following is used to ascertain perfect extinction position?
Mica plate
Gypsum plate
Quartz wedge
None
Q.2Describe uniaxial and biaxial ellipsoid with corresponding interference figures.
14
Q.3Describe crystal structure, chemistry, paragenesis of Actinolite -Tremolite -Minerals.
14
Q.4Describe crystal structure, chemistry, paragenesis of feldspathoids.
14
Q.5Write note
14
Clinopyroxene and orthopyroxene
2V angle and optic sign
Q.6Explain in short:-
14
Polymorphs of alumino silicates
Sign of elongation
Q.7Write note
14
Silicate structure
Clay mineral chemistry structure
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