Minerals Flashcards
All minerals are brittle? T or F
False
Most minerals, like limestone, are radioactive? T or F
False
What is the ability to glow under ultraviolet light?
Fluorescence
What is the ability to reflect light?
Luster
What is the ability to be drawn or pulled into a wire?
Ductility
What is splitting along parrellel flag surfaces?
Cleavage
Tendency to break along irregular surfaces?
Fracture
What’re the 4 questions for figuring out what a mineral is?
Is the substance in organic, is the substance natural, is the substance a crystalline solid at temperatures near the earths surface, and does the substance has a definite chemical composition
What is the difference between a rock and a mineral?
Minerals meet the four characteristics but rocks do not
Why are some metals minerals and some are not
Because alloys are made up of two metals or more but minerals can only be made up of one element
How do ors relate to metals
By separating those orders with magnets electricity or heat
How do you use a field scale
If a mineral a scratch by an item and the item needs a mark then you know that the mineral is softer than that item then you can compare it to the Mohs hardness scale
Metals are valuable bc
All of the above
MOHs hardness scale ____ is hardest
Diamond
What test alone can prove the identity of an unknown substand?
None of the above
