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The streak given by the quartz group is __________________

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The streak given by the quartz group is __________________

(a) White

(b) Colourless

(c) Blue

(d) Pale yellow

I had been asked this question during a job interview.

My enquiry is from Formation and Descriptive Study of Minerals in division The Study of Minerals of Engineering Geology

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The correct option is (b) Colourless

To explain I would say: One of the main trait of the quartz group is that the minerals do not give any streak though are present in many colours in appearance.

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