Definition
Rhyodacite is an extrusive volcanic rock intermediate in composition between dacite and rhyolite
Dolomite is a sedimentary rock containing more than 50 percent of the mineral dolomite by weight
History
Origin
USA
Southern Alps, France
Discoverer
Unknown
Dolomieu
Etymology
Rhyo lite + dacite : a rock intermediate between rhyolite and dacite that is the extrusive equivalent of granodiorite
From French, from the name of Dolomieu (1750–1801), the French geologist who discovered the rock
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
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock