An inorganic, natural, solid with a crystal structure
What is a mineral?
A rock which contains a valuable metal or nonmetal
What is an ore?
An example of igneous rock
What is granite? (other possible answers)
The type of rock most fossils are found in
What is a sedimentary rock?
The three types of rock in the rock cycle
What are igneous, sedimentary, and metamorphic?
The color of a mineral's powder
What is streak?
The process of removing valuable metals from the rock
What is smelting?
A rock that cooled underground
What is an intrusive rock?
The type of fossil made when an organism is trapped in amber
What is a preserved remain?
What are erosion, deposition, compaction, and cementation?
Scratching a mineral with a penny is a way to find this
What is hardness?
A beautiful, durable, and rare mineral
What is a gemstone?
A rock that cooled above ground
What is an extrusive rock?
The longest unit of geologic time
What is an era?
How to change sedimentary rock into metamorphic rock
What are heat and pressure?
The way a mineral reflects light from its surface
What is luster?
An example of a mineral resource
What is gold? (other possible answers)
Rocks that are light in color contain lots of this
What is silica?
The two units of geologic time that an era is broken into
What are a period and an epoch?
How to change metamorphic rock into igneous rock
What is melting?
A measure of the density of a mineral
What is specific gravity?
A solid mixture of two or more metals
What is an alloy?
This determines the grain size of igneous rock
What is the rate of cooling magma?
How is the absolute age of a rock determined?
What is radioactive dating?
Type of metamorphic rock formed from shale
What is slate?