Definition
Scoria is a dark-colored extrusive igneous rock with abundant round bubble-like cavities
Limestone is a sedimentary rock composed mostly of calcite and aragonite, which are different crystal forms of calcium carbonate
History
Origin
-
New Zealand
Discoverer
Unknown
Belsazar Hacquet
Etymology
From late Middle English (denoting slag from molten metal), from Greek skōria refuse, from skōr dung
From lime and stone in late 14th Century
Class
Igneous Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock
Family
Group
Volcanic
-
Other Categories
Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock