Natural womders 4

Question 0

rhyolite

Answer 0

light colored usually pink or gray with distinctive shards of quartz. chemically it is the same as granite

fine grained
extrusive, felsic

Question 1

granite

Answer 1

light colored, usually white or pink with speckled black mineral grains. all minerals interlock randomly

coarse grained
intrusive, felsic

Question 2

diorite

Answer 2

intermediate in color the black and white mineral grains make it distinctive in appearance it is more mafic than granite

coarse grained
intrusive, intermediate

Question 3

andesite

Answer 3

intermediate in color usually a darker grey often has a porphyritic texture which means it usually forms from 2 rates if cooling. chemically the same as diorite

fine grained
extrusive, intermediate

Question 4

gabbro

Answer 4

dark color usually black with minor amounts of felsic light color minerals. not very common rock ots fine grained equivalent is much more common

coarse grained
extrusive, mafic

Question 5

basalt

Answer 5

dark color

Question 6

obsidian

Answer 6

is formed when lava is quenced almost instantly by water being quenched so quickly the ions have too little time to form crystals this size

glassy
extrusive ultra mafic