Rocks and Minerals
A rock is a non-living material made up of different types of?
Minerals
The minerals give the rocks their different?
Color.
The color of the powder left when the mineral is rubbed on a rough surface is called?
Streak.
The way mineral reflects light from its surface is called?
Lustre.
A measure of mineral’s relative resistance to scratching is called?
Hardness.
A mineral is a solid, natural occurring __________ soild with fixed composition and crystalline structure.
inorganic
Degree to which light ca pass through a mineral is called?
Transparency.
Smooth surface of a broken minerals is called?
Cleavage.
There are two types of lustre _____________ and ________________.
metallic and non-metalic
Uneven or rough surface of a broken mineral is called?
Fracture.
A minerals that is rare, beautiful, usually transparent, and glitters or shines in the light is called?
Gem.
The color of the mineral and its streak are often same of different?
Different.
Which minerals is the most resistant to scratching?
Diamond.
Which mineral is the least resistant to scratching?
Talc.
Name three degrees to which light can pass through a minerl.
Transparent, translucent, opaque.
Which mineral is the pencil core made up of?
Graphite.
Which mineral is the baby powder made up of?
Talc.
Which mineral is the copper wire made up of?
Copper pyrite.
Which mineral is the steel spoon made up of?
Hematite.
Which mineral is the crystal cup made up of?
Quartz.
What is the difference between a rock and a mineral?
Rocks are found on the surface of the earth and have minerals within them.
What are 6 mineral properties?
Color, streak, lustre, hardness, cleavage or fracture and density.
Why is Gypsum added to cement?
If there was no gymsum added, then cement would harden/set immediately.
What did early fimmakers use to create snow on set?
Shaved gypsum.
How are people who work in mines called?
Miners.