Gabbro
Rock
Published: June 2014
Modified: November 2021
Gabbro is a rock that is made up of calcium rich plagioclase feldspar and pyroxene, usually augite. Gabbro is found in a variety of locations and has even been discovered on the moon. The colors of gabbro are typically dark gray to black with a medium to coarse texture. It is a favored medium in architectural designs.
General Information
Common Name
Gabbro
Species
Rock
Transparency
Opaque
Optic Character
NA
Optic Sign
NA
Pleochroism
None
Inclusions
Coarse grained crystals.
Luster
Dull
Cleavage
None
Chemical Name
mixture of pyroxene, plagioclase, amphibole, olivine and rarely silica
Crystal System
NA
Chemistry Classification
Rock
Gabbro Colors
-
Black -
Gray -
Green -
Multi-color
Countries of Origin
New Zealand; Unknown; United States of America; Italy; Madagascar; Nigeria; United Kingdom of Great Britain and Northern Ireland; India
Care
Normal care