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IGNOU BGYCT-133 Crystallography, Mineralogy and Economic Geology - IGNOU Solved Assignment (Latest)

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IGNOU BGYCT-133 (January 2026 – December 2026) Assignment Questions

Part A

1. Write short notes on the following:

a) Measurement of interfacial angle
b) Structural classification of silicates

2. Describe the physical properties of minerals belonging to feldspar group giving suitable examples.

3. Discuss the crystallographic axes, symmetry elements and forms of normal class of isometric crystal system with the help of neat well labeled diagrams.

4. Explain the three elements of symmetry with the help of well-labelled diagrams giving suitable examples.

5 Discuss the physical properties of minerals depending upon light, atomic structure and state of aggregation giving suitable examples.

Part B

6. Discuss the nature and morphology of ore bodies with the help of neat well labelled diagrams.

7. Write short notes on the following:

a) Optical properties of muscovite
b) Ore formation by magmatic concentration

8. Explain the parts and functioning of polarizing microscope with the help of neat well labelled diagrams.

9. Differentiate the following:

a) Isotropic and anisotropic minerals
b) Metallic and non-metallic ore minerals

10. Describe in detail the origin, mode of occurrence and geographical distribution of coal in India.

 

IGNOU BGYCT-133 (January 2025 – December 2025) Assignment Questions

Part A

1. Write short notes on the following:

a) Laws of crystallography
b) Types of extinction

2. Describe the physical properties of minerals belonging to pyroxene group giving suitable examples.

3. Discuss the crystallographic axes, symmetry elements and forms of normal class of orthorhombic crystal system with the help of neat well labeled diagrams.

4. Explain the elements of symmetry giving suitable examples.

5 Discuss the classification of rock forming minerals giving suitable examples.

Part B

6. Explain the process of oxidation and supergene enrichment of ore formation.

7. Write short notes on the following:

a) Optical properties of calcite
b) Iron ores

8. Define critical minerals. Discuss the minerals used in war.

9. Differentiate the following:

a) Analyser and polarizer
b) Discordant and concordant ore bodies

10. Describe in detail the origin, mode of occurrence and geographical distribution of petroleum in India.

IGNOU BGYCT-133 (January 2025 – December 2025) Assignment Questions

Part A

1. निम्नलिखित पर संक्षिप्त टिप्पणियां लिखें:

a) क्रिस्टल विज्ञान के नियम
b) विलोपन के प्रकार

2. पाइरॉक्ज़ीन समूह के खनिजों के भौतिक गुणों का उपयुक्त उदाहरण देते हुए वर्णन कीजिए ।

3. विषमअक्षीय समुदाय के सामान्य वर्ग के क्रिस्टलीय अक्षो, सममिति तत्वों एवं संरूपों का स्पष्ट आरेखों की सहायता से वर्णन कीजिए ।

4. सममिति तत्वों को उपयुक्त उदाहरण देते हुए समझाइये ।

5. सामान्य शैलकर खनिजों के वर्गीकरण का उपयुक्त उदाहरण देते हुए चर्चा कीजिए ।

Part B

6. अयस्क निर्माण के ऑक्सीकरण और ऊर्ध्वजनिक समृद्धि प्रक्रियाओं को समझाइये।

7. निम्नलिखित पर संक्षिप्त टिप्पणियां लिखें :

a) कैल्साइट के प्रकाशिक गुण
b) लौह अयस्क

8. क्रांतिक खनिज को परिभाषित करें। युद्ध में उपयोग किये जाने वाले खनिजों की विवेचना कीजिए ।

9. निम्नलिखित में अंतर स्पष्ट कीजिए:

a) विश्लेषक तथा ध्रुवक
b) अननुस्तरी तथा अनुस्तरी अयस्क पिंड

10. पेट्रोलियम की उत्पत्ति, उपस्थिति की अवस्थाओं और भारत में स्थानिक वितरण की विस्तारपूर्वक व्याख्या कीजिए ।

IGNOU BGYCT-133 (January 2024 – December 2024) Assignment Questions

Part A

1. निम्नलिखित पर संक्षिप्त टिप्पणियां लिखें:

a) क्रिस्टलीय अक्ष
b) अन्तराफलक कोण और उसका मापन

2. चतुष्कोणीय / द्विसमलंबाक्ष समुदाय के क्रिस्टलीय अक्ष, सममिति तत्व और संरूपों की संक्षिप्त व्याख्या करें।

3. खनिजों का प्रकाश पर निर्भर भौतिक गुणो का विस्तृत विवरण दीजिए ।

4. सिलिकेटों के संरचनात्मक वर्गीकरण की चर्चा कीजिए ।

5. माइका वर्ग के खनिज मस्कोवाईट और बायोटाईट के भौतिक गुणो का वर्णन कीजिए ।

Part B

6. ध्रुवण सूक्ष्मदर्शी के भागों और कार्य प्रणाली का वर्णन कीजिए।

7. निम्नलिखित पर संक्षिप्त टिप्पणियां लिखें:

a) अयस्क पिंडो की प्रकृति
b) क्लार्क एवं क्लार्क का सांद्रण

8. क्रॉस निकॉल अवस्था मे अध्ययन किये जाने वाले प्रकाशिक गुण की चर्चा कीजिए ।

9. पाइरोक्सीन समूह के खनिजों के प्रकाशिक गुणों की चर्चा कीजिए ।

10. निम्नलिखित पर संक्षिप्त टिप्पणियां लिखें:
a) मैग्मीय सांद्रण
b) औद्योगिक खनिज

BGYCT-133 Assignments Details

University : IGNOU (Indira Gandhi National Open University)
Title :Crystallography, Mineralogy and Economic Geology
Language(s) : English, Hindi
Code : BGYCT-133
Degree :
Subject : Geology
Course : Core Courses (CC)
Author : Gullybaba.com Panel
Publisher : Gullybaba Publishing House Pvt. Ltd.

IGNOU BGYCT-133 (Jan 26 - Dec 26, Jan 25 - Dec 25) - Solved Assignment

Are you looking to download a PDF soft copy of the Solved Assignment BGYCT-133 – Crystallography, Mineralogy and Economic Geology Then GullyBaba is the right place for you. We have the Assignment available in Urdu language. This particular Assignment references the syllabus chosen for the subject of English, Hindi, for the Jan 26 - Dec 26, Jan 25 - Dec 25 session. The code for the assignment is BGYCT-133 and it is often used by students who are enrolled in the BSCG, BSCM, IGNOU CBCS Solved Assignments Degree. Once students have paid for the Assignment, they can Instantly Download to their PC, Laptop or Mobile Devices in soft copy as a PDF format. After studying the contents of this Assignment, students will have a better grasp of the subject and will be able to prepare for their upcoming tests.

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The IGNOU open learning format requires students to submit study Assignments. Here is the final end date of the submission of this particular assignment according to the university calendar.

  • 30th April (if Enrolled in the June Exams)
  • 31st October (if Enrolled in the December Exams).

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