Please do not use text lingo as U in the forum.I agree with Nick, crush and pan ...
=make sure the water has a surfactant (ie soap / or jet dry) .
There is a (panning) method where u use a squirter to push the cons down (to the bottom) of the pan after u tap -tap the top to accumulate the values .. fine fines are going to by microscopic , they wont weigh up to much --- (probably some milligrams)\
and they may be hard to distinguish being close to the color of the rock/sand ...
There are members relying on translators and those do not translate well.