Vocab
A solid made up of one or more minerals
a rock
Type of rock formed when magma cools
Igneous
The softest mineral on the Mohs scale
Talc
(Daily Double) Explain how a metamorphic rock can become a sedimentary rock.
Weathering & erosion, compaction & cementation.
Fracture.
People who study rocks are called
geologists
Type of rock formed by heat & pressure
Metamorphic rock
the hardest known mineral on the Mohs scale
Diamond
The process necessary to change an igneous rock to a metamorphic rock.
Heat & pressure
A streak can only be tested on minerals with a hardness of...
Less than 7
A naturally occurring, pure chemical substance
Name the 3 main types of rocks
Metamorphic, igneous, sedimentary
A mineral that can scratch quartz, but is scratched by corundum.
Topaz
Melting & cooling of magma.
Metallic & nonmetallic
the process that breaks rocks down into smaller pieces
weathering
(Daily Double) How do sediments form?
Weathering & erosion
A mineral that can scratch talc, but be scratched by calcite.
Gypsum
Can an igneous rock become another igneous rock? If so, how?
can melt and solidify.
(Daily Double) Based on your lab, name the ONLY rock that was magnetic.
Magnetite.
the process when the particles carried by water, ice, or wind are dropped (deposited) in another location
deposition
How do sedimentary rocks form?
Compaction & cementation
A mineral that can scratch fluorite, but is scratched by feldspar.
Apatite
Explain how an igneous rock can become a sedimentary rock.
Weathering & erosion, compaction and cementation
Name three of the properties used to identify a mineral.
LUSTER HARDNESS CLEAVAGE/FRACTURE COLOR STREAK MAGNETISM REACTION TO ACID SPECIFIC GRAVITY