Definition
Picrite is a variety of high-magnesium olivine basalt that is very rich in the mineral olivine
Pyroxenite is a dark, greenish, granular intrusive igneous rock consisting mainly of pyroxenes and olivine
History
Origin
Hawaii Islands
-
Discoverer
Unknown
Unknown
Etymology
From Greek pikros bitter + -ite, 19th century
From pyro- fire + Greek xenos stranger as the mineral group was new to igneous rocks
Class
Igneous Rocks
Igneous Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Hard Rock
Family
Group
Volcanic
Plutonic
Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock