Definition
Jaspillite is an iron rich chemically formed rock which is common in banded iron formation rocks
Basalt is a common extrusive igneous rock formed by the rapid cooling of basaltic lava exposed at or very near the surface of Earth
History
Origin
Western Australia, Minnesota
Egypt
Discoverer
Unknown
Georgius Agricola
Etymology
From Jaspilite (Mineral), a compact siliceous rock which resembles jasper
From Late Latin Basaltes (variant of basanites ), very hard stone, which was imported from Ancient Greek Basanites
Class
Sedimentary Rocks
Igneous Rocks
Sub-Class
Durable Rock, Soft Rock
Durable Rock, Medium Hardness Rock
Family
Group
-
Volcanic
Other Categories
Coarse Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock