Definition
Picrite is a variety of high-magnesium olivine basalt that is very rich in the mineral olivine
Dolomite is a sedimentary rock containing more than 50 percent of the mineral dolomite by weight
History
Origin
Hawaii Islands
Southern Alps, France
Discoverer
Unknown
Dolomieu
Etymology
From Greek pikros bitter + -ite, 19th century
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, Hard 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