2011-09-27_REVISION - M1990057 ‎(10)‎

• Permit No: M1990057
• IBM Index Class Name: REVISION
• Doc Date: 9/27/2011
• Doc Name: Revised TR-03, with Adequacy Responses Incorporated.
• From: The Union Milling Company
• To: DRMS
• Type & Sequence: TR3
• Email Name: MAC
• Media Type: D
• Archive: No

MILL CONCENTRATE
The mill product is a single concentrate shipped to a smelter. Table C -10 presents the metal
concentrate of the product based on the Cross Mine ore feed. Mass pull is 11% to the
concentrate.
Table C -10: Bulk Concentrate Characteristics
(1) Completed by Pi Kappa Enterprises, LLC using METSIM Software. Ph 9 -10, P80 - 100mesh. Au feed = 16.62g/t, Ag feed =
360.4g/t
(2) Completed by Resource Development Inc. 8 January 2008.
(3) mg/kg = ppm - ppm x 0.029174 =troy ozlst - ppm x 0.0001 = %
M1990 -057 September 27, 2011
Units
Mill Simulation'
Lab Flotation Tests
METSIM
pH 9 -10
p80- 100mesh
Test #8 Test #11
pHll pH >11
P80- 150mesh P80- 150mesh
Test #12
pH >11
P80- 100mesh
Recovery ( %)
Concentrates
wt. %
11
12
8
10
Tailings
wt. %
89
88
92
90
Metal to Concentrate ( %)
Au - Gold
wt. %
93
94
91
91
Ag - Silver
wt. %
86
87
82
85
Cu - Copper
wt. %
85
86
85
85
Pb - Lead
wt. %
70
73
69
73
Zn - Zinc
wt. %
91
94
90
91
Metal Grade (ppm)
Au - Gold
mg/kg
142
129
168
161
Ag - Silver
mg/kg
2,834
2,612
3,820
3,618
Cu - Copper
mg/kg
13,640
13,950
18,800
15,400
Pb - Lead
mg/kg
62,690
63,500
84,350
75,850
Zn - Zinc
mg/kg
91,270
100,300
112,750
95,200
MILL CONCENTRATE
The mill product is a single concentrate shipped to a smelter. Table C -10 presents the metal
concentrate of the product based on the Cross Mine ore feed. Mass pull is 11% to the
concentrate.
Table C -10: Bulk Concentrate Characteristics
(1) Completed by Pi Kappa Enterprises, LLC using METSIM Software. Ph 9 -10, P80 - 100mesh. Au feed = 16.62g/t, Ag feed =
360.4g/t
(2) Completed by Resource Development Inc. 8 January 2008.
(3) mg/kg = ppm - ppm x 0.029174 =troy ozlst - ppm x 0.0001 = %
M1990 -057 September 27, 2011