Title
Peridotite
Identifier
R-131
Description
Dark grey to black peridotite, phaneritic texture, containing numerous phenocrysts with a soft grey to white color. Small crystals of olivine visible in hand sample, characterized by a darker color than the surrounding rock and a more glassy luster, pyroxcene, olivine
Thin Section
Mostly groundmass, (60%) groundmass contains elongated crystals of plagioclase. Large round pyroxcene and garnet cystals with yellow border
Thin Section
Mostly groundmass, (60%) groundmass contains elongated crystals of plagioclase. Large round pyroxcene and garnet cystals with yellow border
Contributor
Western Minerals, Inc.
Is Part Of
Spatial Coverage
Portland Point Quarry, near Ithica N.Y.
Number of Thin Sections
1