Types of Rocks
Igneous Rock
This mineral is the hardest known natural substance.
Diamond.
The process of rocks breaking into smaller pieces.
Weathering
This soft mineral is used in pencils.
Graphite
This type of rock forms when heat and pressure change an existing rock.
Metamorphic
Degree to which light can pass through a mineral is called?
Transparency.
The process where sediment is carried away by wind or water.
Erosion
This valuable metal is often used in jewelry.
Gold
A mineral is a solid, natural occurring __________ soild with fixed composition and crystalline structure.
Inorganic
The color of the mineral and its streak are often same of different?
Different.
This type of rock forms from layers of sediment being pressed together.
Sedimentary Rock
Name one birth stone
Garnet Amethyst
Aquamarine, Bloodstone
Diamond Emerald Pearl, Alexandrite
Ruby Peridot, Spinel Sapphire Opal, Tourmaline
Topaz, Citrine
Tanzanite, Turquoise, Zircon
A rock is a non-living material made up of different types of?
Minerals
What is the name of the scale that measure's a rock's hardness?
The Mohs Scale.
Granite is an example of this kind of rock.
Igneous
This igneous rock is formed from volcanic glass and is often black. It was used by the Mayans to look at the sun and can be used in Minecraft to create an Ender portal.
Obsidian
What is the difference between a rock and a mineral?
Rocks are found on the surface of the earth and have minerals within them.
This common mineral is used to season food and is known as halite.
Salt
Limestone will eventually turn into marble over time with a lot of pressure and heat. What kind of rock would it be?
Metamorphic
What do you call a person who studies rocks and minerals?
A geologist.