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by seoxinh
Fri May 15, 2020 5:36 am
Forum: Hymn Lyrics - Search Requests
Topic: what is rock
Replies: 0
Views: 159

what is rock

A rock is a solid collection of mineral grains that grow or become cemented together. Some rocks are large while others are small. Small rocks are called pebbles. Every rock is made up of one or more minerals. Geologists (people who study rocks and minerals) classify rocks according to the way they ...