YOU HAVE A GOOD PHOTO THERE... IT SHOWS ONE OF THE POSSIBLE PROBLEMS.
YOU NEED TO GET ALL OF YOUR DIRT DOWN TO THE SIZE OF YOUR POSSIBLE SILVER SPECKS.
IT TAKES ABOUT THE SAME WATER FORCE TO MOVE THE LARGER PEICES OF DIRT AS IT TAKES
TO MOVE THE SMALLER HEAVIER SPECKS. THE SIMPLEST FIX IS TO RUN IT THRU A SCREEN
FINE ENOUGH TO REMOVE ALL OF THE SMALL PEBBLES AND COURSE SAND, THEN CAREFULLY
PAN THESE CONS TO GET A CLEAR SEPERATION. WHEN YOU GET DOWN TO THE POINT THAT YOU CAN SEE THE LIGHTER MATERIAL MOVE AND THE HEAVY PARTICLES STAY STILL YOU CAN
SEE THAT THERE IS A CLEAR DIFFERENCE IN THE SPECIFIC GRAVITY OF YOUR MATERIAL.
IT IS CLEAR IN THE PHOTO THAT THERE IS A DIFFERENCE, BUT NOT ENOUGH TO TELL IF IT IS
SILVER OR NOT.
THE FACT THAT YOU CAN GET THAT MUCH SEPPERATION WITH THE DIFFERENT SIZE PARTICLES
IS A GOOD SIGN THAT THEY ARE HEAVY.
HERE IN NW ARK. IT IS EASY TO GET, WHAT I HAVE BEEN TOLD ARE "SAND DIAMONDS".
I HAVE PICKED UP A FEW SPECKS OF GOLD MIXED WITH THESE TINY SPECKS. THEY ARE
MICROSCOPIC, TO THE POINT THAT I HAVE USED MY HAND HELD 60X - 100X MICROSCOPE TO
COUNT THE GOLD PARTICLES AND THE SAND DIAMONDS, YOU CAN GET 25 TO 35 SPECKS IN THE EYE OF A NEEDLE, AND MAYBE ONE SPECK OF GOLD, AND AT THAT RATIO THE SAND DIAMONDS REFLECT THE COLOR OF THE GOLD.
WHEN I FIRST DISCOVERED THIS, I THOUGHT THAT IT WAS ALL FLOUR GOLD. IT TOOK THE
MICROSCOPE TO SHOW THE DIFFERENCE. YOU CAN GET ONE OF THESE POCKET MICROSCOPES AT RADIO SHACK, FOR ABOUT $10, THEY ARE VERY HANDY IN CASES SUCH AS THESE.
WITH THE PRICE OF SILVER AROUND $40 PER OZ. YOU MAY FIND ENOUGH SILVER OR GOLD TO
GET YOUR MONEY BACK IN JUST A FEW YEARS. THAT IS ABOUT THE TIME IT TOOK FOR ME TO RECOVER MY INVESTMENT... THE SAND DIAMONDS ARE WORTHLESS, THEY JUST GET IN THE WAY.
YOUR SPECKS ARE MUCH BIGGER THAN THE SAND DIAMONDS AND THE GOLD SPECKS THAT I FOUND.
I HOPE YOU CAN FIND SOMETHING IN ALL OF THIS THAT HELPS.
HAPPY HUNTING (HH)

PROSPECTORMIKEL