0.00

0.05

0.10

0.15

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

%C

u in

tails

by

min

eral

2013 Circuit 1 - Cu in Tails

Non-recoverable gangue Atacamite Chrysocolla, Pseudomalachite

Malachite, Azurite Other CuS Tenn/Tetrah

Chalcocite/Covellite Bornite Chalcopyrite

0

5

10

15

20

25

30

35

40

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

%S

i-gan

gue

in C

on b

y m

iner

al

2013 Circuit 1 - Si-Gangue Diluents in Con

OtherSil Pyroxene Olivine/Serp/Talc Amphibole/Chlorite Al_silicates Phlog/Biotite

Musc/Illite AltOrthoclase Orthoclase Plagioclase Quartz

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Bn/

Cp

Rat

io

Bornite/Chalcopyrite Ratio

Feed

Con

Tail

Monthly  Mineralogy  Audit  (MMA)  

For more information please contact: Geoffrey Lane B.Sc.(Hons), P.Geo. –President & Chief Mineralogist

Ph: (604) 477-2700

glane@processmineralogy.com www.processmineralogy.com

0

2

4

6

8

10

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

% L

oss

Dis

trib

utio

nl

2013 Circuit 1 - Recoverable Loss

Non-recoverable Cu Recoverable Cu

Process Mineralogical Consulting Ltd announces a new service to Mill Superintendents and Plant Metallurgists to provide weekly / monthly mineralogical analysis of Plant Feed, Final Conc and Final Tail. With the advances of new and costly in-plant mineralogical apparatus a spotlight has been provided to highlight the importance of on-going mineralogical analysis of the various circuit streams an their value to ongoing operations. PMC Ltd staff have experience carrying out in comprehensive analyses for plant feed and final product analysis as well routine monthly plant performance at concentrators such as Northparkes (New South Wales), Mount Polley and Myra Falls (British Columbia). Our experience can assist in providing an effective monitor to mineral control factors in plant performance illustrated in easy to understand reports. “Matrix” mineralogy methods are complicated and make the metallurgical team dependent upon others to interpret the results. We can provide analysis and straightforward data with informative interpretations giving the metallurgist a tool for understanding the performance of the plant and the effect of changes in the ore.

0 10 20 30 40 50 60 70 80 90

100

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

%M

iner

al in

Con

2013 Circuit 1 - Mineral Distribution in Con

NS Gangue OtherSulphides Pyrite Other Cu Minerals

Tenn/Tetrah Chalcocite/Covellite Bornite Chalcopyrite

0

10

20

30

40

50

60

70

80

90

100

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

% o

f Cu

Min

eral

s

2013 Circuit 1 - Cu in Feed (Calculated)

Other Cu Minerals Tenn/Tetrah Chalcocite/Covellite Bornite Chalcopyrite

0 10 20 30 40 50 60 70 80 90

100

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

% o

f Cu

Min

eral

s

2013 Circuit 1 - Feed Mineralogy (Calculated)

Other NS Gangue Amphibole/Chlorite Al_silicates Phlog/Biotite

Musc/Illite AltOrthoclase Orthoclase Plagioclase

Quartz OtherSulphides Pyrite Other Cu Minerals

Tenn/Tetrah Chalcocite/Covellite Bornite: Cu5FeS4 Chalcopyrite: CuFeS2