2021-07-14_REVISION - M2012032 ‎(4)‎

• Permit No: M2012032
• IBM Index Class Name: REVISION
• Doc Date: 7/14/2021
• Doc Name Note: II of II
• Doc Name: Adequacy Review Response
• From: Ouray Silver Mines
• To: DRMS
• Type & Sequence: TR15
• Email Name: LJW
• Media Type: D
• Archive: No

DMIDTH
Table 6: Liberation of Sphalerite in the Master Composite
by QEMSCAN (Distribution %)
Fraction (microns)
+106 -1061+53 -53/+20 -20 SUM
Lib Galena 0.00 0.01 0.00 0.00 0.01
Lib Chalcopyrite 0.01 0.00 0.01 0.00 0.02
Lib Tetrahedrite 0.01 0.00 0.00 0.001 0.01
Lib Sphalerite 22.691 29.75 18.59 18.40 89.43
Lib Py 0.01 0.02 0.01 0.00 0.04
Mid Galena 0.27 0.28 0.30 0.01 0.87
Mid Cp 0.19 0.17 0.08 0.28 0.72
Mid Tet 0.24 0.15 0.06 0.001 0.45
Mid Sp 2.031 2.43 0.80 1.16 6.42
Locked Gn 0.04 0.08 0.01 0.00 0.13
Locked Cp 0.02 0.00 0.00 0.00 0.02
Locked Tet 0.00 0.00 0.00 0.00 0.00
Locked Sp 1.05 0.57 0.16 0.041 1.82
Complex 0.051 0.00 0.00 0.00 0.05
Ba rre n 0.00 0.00 0.00 0.00 0.00
Other 0.00 0.001 0.00 0.00 0.00
sum 26.59 33.471 20.03 19.90 100.00
Table 7: Liberation of Chalcopyrite in the Master Composite
by QEMSCAN (Distribution %)
Fraction (microns)
+106 -1061+53 -53/+20 -20 Sum
Lib Galena 0.00 0.02 0.03 0.03 0.08
Lib Chalcopyrite 9.87 12.51 15.70 26.08 64.16
Lib Tetrahedrite 0.03 0.05 0.05 0.121 0.25
Lib Sphalerite 0.101 0.20 0.04 0.01 0.36
Lib Py 0.06 0.05 0.02 0.01 0.13
Mid Galena 0.49 0.98 0.55 0.11 2.14
Mid Cp 7.61 7.32 2.57 5.25 22.75
Mid Tet 0.27 0.21 0.12 0.54 1.14
Mid Sp 0.231 0.07 0.14 0.03 0.46
Locked Gn 0.24 0.17 0.08 0.00 0.48
Locked Cp 4.31 1.97 0.86 0.36 7.50
Locked Tet 0.00 0.03 0.01 0.05 0.09
Locked Sp 0.11 0.11 0.02 0.00 0.24
Complex 0.141 0.04 0.02 0.02 0.21
Ba rre n 0.00 0.00 0.00 0.00 0.00
Other 0.00 0.001 0.001 0.00 0.00
sum 23.46 23.731 20.191 32.62 100.00
Page 6 of 15