Chalcopyrite
When a mineral can scratch another mineral, it means that the mineral is harder than the mineral it can scratch. Hardness is a measure of a mineral's resistance to being scratched, with the Mohs scale commonly used to rank minerals based on their hardness.
The color of a mineral in powdered form is called the mineral's Streak
Biotite is definitely a mineral. It's in the same family as muscovite, another mineral in the mica family.
quarts
True. In general, a mineral can scratch any mineral that is softer than itself according to Mohs Scale of Mineral Hardness. This means that a mineral with a higher number on the scale can scratch a mineral with a lower number.
Out of all the contestants, she was the prettiest.
In my opinion Bianca is the prettiest. The next prettiest I think is Anya, then Fiona. Then Alli
Depends on your opinion of 'prettiest'.
Rochelle is the prettiest one from the Saturdays :):)
That depends on you definition of 'prettiest' flower.
Tanae is the prettiest girl ever!
She is the prettiest girl in the school.
No, Truly the prettiest state is Illinois
That's exactly the same as asking what the prettiest colour is.
They have the prettiest butt.
The ball python is the prettiest snake in the world.
Well i think Brigid Casey is the all time prettiest.