Q. Which of the following is not true about plagioclase?

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Q. Microcline can be easily distinguished from orthoclase.

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Q. The mica group minerals show which structure in the microscopic level?

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Q. There is the presence of eminent cleavage in micas.

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Q. What percent of crust do the micas form approximately?

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Q. Which is the less important and more important and less important minerals crystallize respectively?

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Q. What type of cleavage is shown by mica group?

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Q. Which mineral is flaky and black in appearance?

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Q. What is the other name of muscovite mica?

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Q. What is the diaphaneity of muscovite mica?

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Q. What is the streak given by muscovite mica?

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Q. Pick the wrong statement about mica.

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Q. What is the distinguishing property between biotite mica and muscovite mica?

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Q. What is the chemical composition of Quartz?

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Q. Which quartz mineral shows blue colour?

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Q. Rock crystal belongs to which mineral group?

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Q. Pick the quartz mineral which is translucent among the following.

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Q. The streak given by the quartz group is __________________

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Q. Pick the quartz which is colourless among the following.

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Q. What is the hardness of the quartz minerals?

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