 The abundance of antimony in the Earth 's crust is estimated at 0 @.@ 2 to 0 @.@ 5 parts per million , comparable to thallium at 0 @.@ 5 parts per million and silver at 0 @.@ 07 ppm . Even though this element is not abundant , it is found in over 100 mineral species . Antimony is sometimes found natively ( e.g. on Antimony Peak ) , but more frequently it is found in the sulfide stibnite ( Sb2S3 ) which is the predominant ore mineral . 
 The abundance of antimony in the Earth <a href='null_genetive' title='1'><mark>'s</mark></a>crust is estimated at 0 @.@ 2 to 0 @.@ 5 parts per million , comparable to thallium at 0 @.@ 5 parts per million and silver at 0 @.@ 07 ppm . Even though this element <a href='negative_concord' title='2'><mark>is</mark></a> <a href='negative_concord' title='3'><mark>not</mark></a>abundant , it is found in over 100 mineral species . Antimony is sometimes found natively ( e.g. on Antimony Peak ) , but more frequently it is found in the sulfide stibnite ( Sb2S3 ) which <a href='drop_aux' title='4'><mark>is</mark></a>the predominant ore mineral . 
The abundance of antimony in the Earth  crust is estimated at 0 @.@ 2 to 0 @.@ 5 parts per million , comparable to thallium at 0 @.@ 5 parts per million and silver at 0 @.@ 07 ppm . Even doe this element ain't abundant , it is found in ova 100 mineral species . Antimony is sometimes found natively ( e.g. on Antimony Peak ) , but more frequently it is found in the sulfide stibnite ( Sb2S3 ) which the predominant ore mineral .