Geometallurgical approach and quantitative mineralogy of the
copper/gold deposit of Chelopech
1. Location
Chelopech
•Western Bulgaria at 75km from Sofia
•Southern part of BTS belt
•Central position in Panaguyrishte district
4. Classification of minerals
2. Samples
•55 images/ polished section •3 wavelengths/image
•Creation of polished sections (-38µm, 38-75µm and +75µm) from flotation plant samples
3. Acquisition
5. Image correction
•Excellent classification
but
« Mixel » and plucking problems
6. Quantitative results •Allow to know proportions of each mineral in each sample
Image classified (before correction)
Rectified image
EVRARD Maxime and PIRARD Eric
GeMMe- Minerals Engineering, Materials and Environment
•Match with optical observations and chemical analyses
Concentrate
Ore
T1
T2
TT
Concentrate
Ore
T1
T2
TT
0,000
0,001
0,010
0,100
1,000
0,001 0,01 0,1 1
Qu
anti
tati
ve r
esu
lts
stan
dar
diz
ed
w
ith
S
Chemical values standardized with S
Multispectral imaging base results
Cu
As