Overburden Drilling Management
Data Authentication and Forensic Investigations…
Amalgamated Gold Grain
Milled Gold Grain
Precipitated Gold Grains
- ODM has been commissioned to advise on or investigate numerous cases where mineral contamination or tampering was suspected including:
- Gold grains added to crushed rock samples (e.g. Bre-X)
- Gold and silver grains precipitated from solution
- Gold grains added to soil sample sites
- Prospectors’ mercury in stream sediments
- Windborne drill, mine and smelter dust in soil and humus samples
- Mine, mill, smelter and industrial waste in stream sediments
- Silver contamination from diamond drill bits
- Inter-sample contamination in mineral processing laboratories
- Our use of SEM technology enables us to fingerprint gold grains and other minerals to visually and chemically verify their source.
- Our laboratory technique is so sensitive that we connected minute silver particles to a field geologist who wore a silver ring while collecting sediment samples.
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