Andesitic dike, New Zealand

dyke, intrusion

Pegmatite dike in schist (vertical)

Graphic granite

Pegmatite dike cutting schist, Montana

intrusion, intrusive, metamorphic, Archean, precambrian

Purcell sill, Glacier National Park, Montana.

Sill intruding Dolomite of the Helena Formation, Glacier National Park, Montana

igneous, intrusive, intrusion, Precambrian

Garnet Peridotite hand sample

specimen, igneous, intrusive

Granite sill intruding gneiss, Colorado.

igneous, intrusive

Diabase sill in marble, California

igneous, intrusive

Pegmatite dike in granitic rock.

granite, igneous, intrusive, minerals

Composite dike

igneous, intrusive

Pegmatite intruding gneiss , California

Pegmatite intruding basement gneiss , California

sill, dike, igneous intrusion, intrusive

horizontally oriented dike, Oregon

mafic intrusion, igneous

Rapakivi granite close-up

granitic

Magmatic flow foliation in granitic rock

granite, intrusive, igneous, minerals