TRACEABLE
Know the material and where it came from.
RESPONSIBLE GOLD RECOVERY
RESPONSIBLE GOLD RECOVERY NEEDS CLEAR BOUNDARIES.
This page sets out the principles. The technical test-and-design sequence is explained separately under Process.
PHYSICAL WHERE SUITABLE
USE THE SIMPLEST RESPONSIBLE ROUTE THAT WORKS.
Where the ore responds well to physical separation, NORSE prefers that route. Whether it is suitable is established through testwork, not assumed in advance.
01Ore
02Crush
03Grind
04Classify
05Gravity
06Concentrate
Not every ore behaves the same. Testwork determines the process.
NO MERCURY IN THE CLEAN PROCESS
CLEAN MATERIAL STAYS CLEAN.
Mercury is not part of the NORSE clean processing line. Material with a known or suspected history of mercury use must be identified and kept separate from clean ore and concentrates.
HISTORICALLY CONTAMINATED MATERIAL
Material with a known or suspected mercury history is kept outside the clean-material route until it has been separately identified, evaluated and given an appropriate handling plan.
MEASURABLE RESULTS
MAKE THE RESULT REVIEWABLE.
Where a commercial service model applies, measurement and documentation should make it possible to review what entered the process, what was recovered and what remained.
Weigh
Sample
Process
Analyse
Verify
Settle
Every gram should be accountable. Measure the feed, the product and what remains.
WHEN GRAVITY IS NOT ENOUGH
ANALYSE WHAT REMAINS.
Some ores contain gold that cannot be recovered effectively by gravity alone. The remaining material must be analysed before an additional processing route is selected.
MEASURABLE
Sample, analyse and reconcile the process.
VERIFIABLE
Create a result that can be reviewed.
What type of ore do you have?
Responsible recovery starts with understanding the material.