Fichas

igneous rocks

Sabrina Jolley Inglés 12 fichas

Fichas del conjunto (12)

1gabbrocoarse grained
pyroxene, plagioclases
color black/green
intrusive
2rhyolite pumicefine grained
light grey
little bubbbles
extrusive
mins- quartz, plagioclase
vesicular
3diroite(salt and pepper)
coarse grained
light brown and black
intrusive
mins- biotite, pyroxene
4basaltfine grained
black/ dark grey
cant see minerals - plagioclase/pyroxene
extrusive
5granitecoarse grained
mins- quartz/feldspar
color pink, white, black, grey
intrusive
6periodotitecoarse grained
more green color
mins- olivine
intrustive
7andesitefine grained
grey
small crystals throughout
extrusive
mins- pyrozene, pladioclase feldspar
8rhylotitefine grained
pink
extrusive
mins- quartz, plagioclase
9obsidianglassy
black
extrusive
mins-quartz, orthoclase
10pumicelight gray/white
feels like sand
extrusive
mins- feldspar, zircon
11pyrcoclastic brecciacoarse grained
pyroclastic
extrusive
mins- calcite/quartz
12scoriavesicular volcanic rock
dark in color (red, brown, black)
mins- plagioclase, pyroxene
extrusive