What property of a mineral is very unreliable for identification?
Which of the following minerals would bubble if put in a weak acid?
What do we call the mineral property that is the color of the powdered mineral?
What properties of gold would help you to identify it?
When a mineral breaks along a straight surface, we call that property...
What are the names of two very soft minerals?
What mineral could this be? It has a hardness of 7. It breaks with curved surfaces.
Mica is a family of minerals. Which of these two minerals belong the the Mica family?
What is the hardest mineral in this list?
What scale is used to measure the hardness of a mineral?