Does anybody know what kind of rock/ crystal this is because i can’t tell if this a amethyst in side a rock. i had this rock for two years and had a bit purple sticking out.

It looks like it could be chevron amethyst, which is a combination of amethyst and white quartz

the most common type of reef is the fringing reef. this type of reef grows seaward directly from the shore. they form borders along the shoreline and surrounding islands.

all these collisions do one thing, and that thing is explained in the last option. when dusst, rocks and ice collide, they harden and form giant layers of rocks or hard ice.

d)   to harden materials to form different parts of earth’s layers

hope it ,

bioteacher101