metamorphic rock
rock arising from metamorphism of original rock under high heat and pressure
jade
ornamental stone
tektite
glassy body formed by a meteorite impact
greisen
highly altered granitic rock or pegmatite
soapstone
type of metamorphic rock
fulgurite
metamorphic rock formed when lightning strikes sand, soil, sand, rock, organic debris
amphibolite
High crystallinity rock; It also has crystalline shale and massive metamorphic rocks
protogine
A term used in the Alps for a metagranitic rock.
marble
non-foliated metamorphic rock commonly used for sculpture and as a building material
gneiss
common and widely distributed type of rock
slate
fine-grained, foliated, homogeneous, low-grade metamorphic rock
lapis lazuli
contact metamorphic rock containing lazurite (but in most cases is haüyne), pyrite and calcite, mainly
quartzite
hard, non-foliated metamorphic rock which was originally pure quartz sandstone
eclogite
metamorphic rocks
magnesite
metamorphic rock
granulite
metamorphic rock
mylonite
fine-grained, compact metamorphic rock produced by dynamic recrystallization of the constituent minerals
iron quartzite
Quartzite is a very hard rock composed mainly of an interlocking mosaic of quartz crystals.
crystalline schist
medium-grade metamorphic rock
emery
metamorphic rock
propylite
metamorphic rock
buchite
metamorphic rock