Minerals
What is the softest mineral?
Talc
Which mineral fizzes in acid?
Calcite
What are 2 types of igneous rocks?
Intrusive and Extrusive
Define sediments
Particles of rock or minerals
Rocks formed from other rocks caused by heat and pressure.
What is the hardest mineral?
Diamond
Which mineral tastes like salt?
Halite
Which type of of igneous rock is formed below ground (intrusive or extrusive)?
Intrusive
Define Lithification
The process of sediments cementing together to form a rock. (How the rock becomes a rock)
What are the 2 types of metamorphic rocks?
Foliated and NonFoliated
What scale do we use to test a minerals hardness?
Moh's Hardness Scale
Which mineral is magnetic?
Magnetite
If an igneous rock has holes in it, is it intrusive or extrusive?
Extrusive
What are the 3 types of sedimentary rocks.
Clastic
Chemical
Organic
Define metamorphism
to change form
What are the 5 characteristics of a mineral?
Naturally occurring
Inorganic- never been living
Solid
has a defined structure
has a defined chemical makeup
What is the hardest mineral that we tested? ( it could scratch glass)
Quartz
If an igneous rock has large crystals in it, is it intrusive or extrusive?
Intrusive
Name two examples of sedimentary rocks.
Brecca, Conglomarate, Sandstone, Limestone, Chalk, Coal....
Define deposition
the depositing of sediments on the surface on the Earth
What are the 6 physical properties of minerals?
Color
Streak Color
Luster
Cleavage
Fracture
Hardness
Which mineral was a grey/black color but had a red/brown streak?
Hematite
What are 3 things igneous rocks tell us?
How old the rock is.
Where the rock was formed.
Which Sedimentary rock fizzed when acid was placed on it?
Limestone
Define weathering
The breaking down of rocks and minerals into smaller pieces by natural processes such as wind or water.