Johnnyanglo
Active member
Just for the sake of doing it, I plotted the target Fe-Co position on E-trac's 35-50 grid display for a wide variety of targets. Some Fe rows are widened due to the number of targets plotted on those rows. There are 611 plotted targets displayed - one square to each, though some more than once due to results from multiple sources. All the data was compiled by others - predominately from air tested values available on the internet (I will assume to be largely a fair assessment) for the E-trac.
Each target is somewhat subjectively color-coded to its relative metal value. That is, bright blues are the thickest of gold rings and gold/purer silver coins while the bright pinks are thinner/medium-smaller gold rings and coinage with less silver content. Copper/brown colors are more irregular or thinner and less valuable rings, assorted trinkets, pendants, and earings, and a variety of copper or clad coins (the value is not tied to the coin's date but to the metal's intrinsic worth). Bright yellows are iron/brass relics of marginal metal value and includes some very thin-small rings and thin gold chains. The dark greys are junk targets like washers, nuts, shotgun brass, foil, lead, bottle caps, pull-tabs, tacks, etc. Generally most detectorists would be interested in anything that is not dark grey.
The actual in-soil Fe-Co values you find are likely to display slight differences by a few numbers depending on the target's depth, position, soil mineralization, etc., but for general purposes it should give a fair indication as to where on the display a given target is likely to fall.
There are numbers assigned to each target square - each number matches to a master table of all targets (not included here).
Enjoy -
Each target is somewhat subjectively color-coded to its relative metal value. That is, bright blues are the thickest of gold rings and gold/purer silver coins while the bright pinks are thinner/medium-smaller gold rings and coinage with less silver content. Copper/brown colors are more irregular or thinner and less valuable rings, assorted trinkets, pendants, and earings, and a variety of copper or clad coins (the value is not tied to the coin's date but to the metal's intrinsic worth). Bright yellows are iron/brass relics of marginal metal value and includes some very thin-small rings and thin gold chains. The dark greys are junk targets like washers, nuts, shotgun brass, foil, lead, bottle caps, pull-tabs, tacks, etc. Generally most detectorists would be interested in anything that is not dark grey.
The actual in-soil Fe-Co values you find are likely to display slight differences by a few numbers depending on the target's depth, position, soil mineralization, etc., but for general purposes it should give a fair indication as to where on the display a given target is likely to fall.
There are numbers assigned to each target square - each number matches to a master table of all targets (not included here).
Enjoy -
