What is a mineral?
True or False : All minerals grow in nature.
True
The property of minerals that determines how atoms are bonded is called __________. It is determined by scratching the mineral.
Hardness
the resistance to being scratched is called ____________.
hardness
The mass of a 8mL mineral is 24g. What is its density?
3g/mL
An ___________ is a substance made of only one type of atom.
ELEMENT
True or False : Minerals can be gases, liquids, or solids.
False; minerals are solid.
Non-Metallic
True or False : A mineral can be scratched by minerals with EQUAL/MORE hardness.
True
The mass of a 50mL mineral is 200g. What is its density?
4g/mL
A _____________ is a solid in which atoms are arranged in an orderly, repeating, 3D pattern.
CRYSTAL
True or False ; minerals have a definite chemical make-up.
True!
True or False : A color of a mineral ALWAYS matches its streak, or the color when scraped on a streak plate.
False
A fingernail has a hardness of approximately : _____
2.5
The mass of a 150mL mineral is 300g. What is its density?
2g/mL
Minerals that break along flat surfaces are said to have ____________.
CLEAVAGE
True or false ; some minerals have a crystal make up.
False; all minerals have a crystal make-up.
Water is not a mineral, but ice is. Explain.
Water is a liquid, which means it cannot be a mineral. Ice is a solid, which means it can be a mineral.
False. Fingernails have an average hardness index of 2.5.
The mass of a 8mL mineral is 96g. What is its density?
12g/mL
Minerals with a tendency to break into irregular pieces have ________.
Fracture
True or false; while most minerals are formed out of non-living things, some are formed from bones and shells of organisms.
True!
The three most common minerals are silicates, carbonates, and ________.
OXIDES
True or False : Diamond can scratch Quartz.
True. Diamond has a hardness of 10. Quartz has a hardness of 7.
The mass of a 12mL mineral is 144g. What is its density?
12g/mL
_________ is the amount of mass in a given volume.
Density