The phenomenon due to which a mineral shows rainbow colours is? Options: A . &nbspIdiochromatism B . &nbspAllochromatism C . &nbspIridescence D . &nbspPseudochromatism

The phenomenon due to which a mineral shows rainbow colours is?

Question

The phenomenon due to which a mineral shows rainbow colours is?

Options:

A . Idiochromatism

B . Allochromatism

C . Iridescence

D . Pseudochromatism

Answer: Option C
Answer: (c).Iridescence

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Question 1. Allochromatic minerals may show more than two colours.....

Question 2. Pseudochromatism occurs due to ___________....

Question 3. The type of mineral which shows a set of colours in succession is?....

Question 4. The carbonate minerals have high hardness.....

Question 5. What is the colour and diaphaneity of a calcite mineral respectively?....

Question 6. What is the streak given by calcite minerals?....

Question 7. Dolomite is formed by the action of magnesian rich sea water on which deposit?....

Question 8. Which carbonate mineral has this chemical composition CaCO₃Mg(CO₃)₂?....

Question 9. Which lustre cannot occur to the calcite?....

Question 10. How many sets of cleavage is shown by calcite minerals usually?....

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