Optical mineralogy questions.
Find Optical mineralogy university examination questions in acaproso.com
| # | Question |
|---|---|
| 1 | Explain the cause of the following
Short answers |
| 2 | Explain the main factors that contribute to the variation of orders of interference colors of mineral grains. Short answers |
| 3 | When do we say that a mineral section has a positive elongation? Short answers |
| 4 | Describe microscopic procedures for determining signs of elongation of a mineral grain. Short answers |
| 5 | By using neat diagrams explain the meaning of 2V of a biaxial mineral. Short answers |
| 6 | What axis makes the acute bisector of 2V for:
Short answers |
| 7 | In which position and why does an anisotropic mineral become extinct when viewed under a crossed polar microscope. Short answers |
| 8 | What is an extinction angle? Short answers |
| 9 | Using petrographic polarizing microscope, outline the procedures for determining Optical character for anisotropic minerals. Short answers |
| 10 | Using the optical indicatrix, explain the difference between Uniaxial and Biaxial minerals. Short answers |
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