Garrett Metal Detectors Infinium LS - Manual (Page 27)

Gold is generally found in rock formations along
with a great many other conductive/ferrous minerals.
A high quality detector, such as the Infinium LS with
its Advanced Pulse Induction technology that cancels
out mineralization, can be used to find this gold or
any other precious metal.
It must be emphasized that the Infinium LS or any
other quality detector is usually operated with zero
discrimination and very precise ground balance if gold
is to be found. This is particularly important when
searching for tiny gold nuggets. Furthermore, when
prospecting, all targets must be located and carefully
inspected. It is only in this manner that you can be
successful in using a metal detector to discover pre-
cious metal nuggets and ores.
Hard work, patience and research are three of the
keys to success in electronic prospecting. Research
is important because it is vital that gold always be
sought in areas where it is known to exist.
Hot rocks are a problem for any electronic pros-
pector, whether veteran or weekend adventurer. A
"hot rock" can be described as a concentration of
iron mineral that causes a detector to recognize it
as metal when the instrument is operating with zero
discrimination. Fortunately, the advanced technology
of the Infinium LS allows it to ignore nearly all hot
rocks; only the most extreme hot rocks will produce a
response.