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Detail Form
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1.
The minerals which develop electric charge upon heating are called __________
2.
The Phenomenon where electric charge develops due to application of pressure is __________
3.
How many minerals are present in the scale of fusibility given by Von Kobell?
4.
Specific gravity of mineral changes with temperature.
5.
Which of the following minerals can scratch Topaz?
6.
Streak colour and colour of the mineral are always same.
7.
Which of the following mineral shows phosphorescence?
8.
Quartz shows which lustre?
9.
Which among the following shows silky lustre?
10.
Which mineral group is abundantly found in the earth