99013C

99013C
Caption: Beach sand containing both mineral that has been derived from living organisms (such as coral) and rock. Note the sharp edges of the sand grains produced from rock while the sand grains produced from coral have fine holes and are smoother due to wearing down by the surface action. This sand came from Diamond Head, Honolulu, Hawaii.
Magnification*: x10
Type: SEM
Copyright 2000 Dennis Kunkel Microscopy, Inc.
Keywords: 99013C,mineral,sand,coral,rock,calcium carbonate,SEM,beach sand,coral sand,mineral sand