Definition
Rapakivi Granite is a hornblende-biotite Granite containing large rounded crystals of orthoclase which are mantled with oligoclase
Dolomite is a sedimentary rock containing more than 50 percent of the mineral dolomite by weight
History
Origin
Finland, Europe
Southern Alps, France
Discoverer
Jakob Sederholm
Dolomieu
Etymology
From Finnish Rapakivi which stands for crumbly rock
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
Plutonic
-
Other Categories
Coarse Grained Rock, Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock