1. In acid rocks sillica percentage more than
2. Quartz contains
3. The property of cooking coal to become plastic on heating in absence of air called
4. The original rock is mudstone, its metamorphic rock is
5. Large ignious rock mass, irregular, widening down wards without known floor called
6. Clay can split along
7. What is dunes
8. It is the parents of mineral deposit
9. Streak of Iron pyrite
10. Colour of magnetite
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