Why standard coin and relic detectors walk over gold, and what makes a dedicated gold prospecting machine different — high frequency, pulse induction and beyond.
Gold prospecting demands specialist equipment, and the reason is physics rather than marketing: a capable coin-and-treasure machine can walk straight over nuggets that a dedicated gold detector finds easily.
Gold is low-conductivity — small nuggets respond weakly to the frequencies coin machines use. Gold is usually small — sub-gram pieces are the norm, not the exception. And gold lives in mineralised ground — the ironstone and hot rocks of gold country generate exactly the ground noise that defeats standard VLF detectors.
Dedicated gold detectors take one of two routes: very high frequencies, which trade depth for sensitivity to tiny, low-conductivity targets; or pulse induction, which fires powerful pulses and reads the decay — largely ignoring ground mineralisation, at the cost of discrimination.
Natural gold in the UK is real but modest — Scottish and Welsh streams have produced it for centuries. Most UK detectorists encounter gold as jewellery and hammered coinage, which standard multi-frequency machines handle well. Dedicated prospecting machines — Minelab’s GPX and GPZ ranges, stocked by Crawfords as authorised Minelab distributor — earn their keep for serious prospecting, at home or abroad.
Not sure which side of that line you are on? Start with the leaderboard — if “gold” means rings and hammereds, our standard picks already cover you.
Honest advice for your ground and budget · 01724 845608 · Mon–Fri 9am–5pm · Sat 10am–12pm
Crawfords Metal Detectors is an authorised Minelab dealer and an official stockist of XP and Nokta. We test and sell the products we review.
