fayalite Definition
- 1a mineral of the olivine group, typically dark green or brownish-black in color, found in igneous rocks rich in iron and magnesium
- 2the iron-rich end-member of the olivine solid-solution series
Using fayalite: Examples
Take a moment to familiarize yourself with how "fayalite" can be used in various situations through the following examples!
Example
The fayalite crystals were found in the volcanic rock.
Example
Fayalite is a common mineral in basaltic rocks.
Example
The presence of fayalite in the rock indicates that it formed at high temperatures.
Phrases with fayalite
fayalite-magnetite-quartzite
a metamorphic rock composed mainly of fayalite, magnetite, and quartz
Example
The fayalite-magnetite-quartzite is commonly found in the Precambrian shield.
fayalite-bearing rock
a rock containing fayalite as one of its main components
Example
The fayalite-bearing rock was formed by the cooling of magma deep beneath the Earth's surface.
Example
The fayalite crystal was analyzed using X-ray diffraction.
Origins of fayalite
from Fayal, an island in the Azores, Portugal, where it was first discovered
Summary: fayalite in Brief
Fayalite [ˈfeɪəlaɪt] is a dark green or brownish-black mineral of the olivine group, found in iron and magnesium-rich igneous rocks. It is the iron-rich end-member of the olivine solid-solution series. Examples of usage include 'The fayalite crystals were found in the volcanic rock.' and 'The presence of fayalite in the rock indicates that it formed at high temperatures.'
