Definition
Definition
Scoria is a dark-colored extrusive igneous rock with abundant round bubble-like cavities
Peridotite is a dense, coarse-grained plutonic is the main constituent of the earth's mantle
History
Origin
Unknown
Pike County, U.S
Discoverer
Unknown
Unknown
Etymology
From late Middle English (denoting slag from molten metal), from Greek skōria refuse, from skōr dung
From French, from peridot + -ite
Class
Igneous Rocks
Igneous Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock
Family
Group
Volcanic
Plutonic
Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock