>
Time management is very much important in IIT JAM. The eduncle test series for IIT JAM Mathematical Statistics helped me a lot in this portion. I am very thankful to the test series I bought from eduncle.
Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Vaibhav Singh posted an Question
April 24, 2021 • 19:00 pm
![]()
30 points
30 points
- IIT JAM
- Geology (GG)
Eduncle geology (mineralogy-1) change of colour is a somewhat similar, phenomenon extending over broader surfaces, the succession of colours being produced as t
Eduncle Geology (Mineralogy-1) Change of colour is a somewhat similar, phenomenon extending over broader surfaces, the succession of colours being produced as the mineral is turned. Certain varieties of the mineral plagioclase feldspar show these changes of colour very well, particularly a feldspar which is a major constituent of the igneous rock larvikite from southern Norway. Polished slabs of this rock are widely used as cladding panels by the building trade. The change in colour is caused by the interference of light reflected from thin plates of other minerals enclosed or exsolved in parallel planes within the feldspar crystals, Such a phenomenon is similar to that of schiller, an almost metallic lustre exhibited by the orthopyroxene minerals, particularly hypersthene, where reflection of colours takes place on mineral plates exsolved on parallel planes within the crystal. PLEASE EXPLAIN IN DETAIL.
1 Answer(s)
Answer Now
- 0 Likes
- 1 Comments
- 0 Shares
-
![comment-profile-img]()
>
Do You Want Better RANK in Your Exam?
Start Your Preparations with Eduncle’s FREE Study Material
- Updated Syllabus, Paper Pattern & Full Exam Details
- Sample Theory of Most Important Topic
- Model Test Paper with Detailed Solutions
- Last 5 Years Question Papers & Answers
Sign Up to Download FREE Study Material Worth Rs. 500/-
Sajan sarthak![best-answer]()
Color of a mineral is not a diagnostic property. A mineral can show variety of colours due to presence of impurity. Plagioclase is such a mineral which has a property of Schilleriasation . it's platy too.