Identify the type of structure shown below.

Pick the quartz which is colourless among the following.

Lustre doesn’t depend on?

Type of shine or lustre associated with lustre of diamond is _______

Which mineral group is abundantly found in the earth’s crust?

The property of a mineral by virtue of which it can be cut with a knife is ______

Which of the following mineral shows phosphorescence?

The term which means, rough woody fracture is _______