annexc - Newmont Mining Corporation

PHASE 2 COMPOSITE
SAMPLE ID
ANPA
(%CO2)
Carbon
(%)
CAI
(%C)
TABLE C3-5
Summary of Phase 2 NCV Confirmation Testing
Akyem Gold Mining Project
SAP-550C
(%S)
Sulfur
(%)
ANP
(%CO2)
AGP
(%CO2)
ANP:
AGP
NCV
(%CO2)
ANPA
NCV
(%CO2)
LITHOLOGY
NCV
CLASSIFICATION
Akyem NCV 01 GW B 3.08 1.58 0.11 0.19 0.81 5.40 -0.85 6.4 4.55 2.23 GW* Basic
Akyem NCV 02 GW HB 3.71 3.62 0.12 0.24 1.04 12.9 -1.09 12 11.8 2.62 GW* Basic
Akyem NCV 03 MV HB 3.64 3.29 0.16 0.31 0.99 11.5 -0.93 12 10.6 2.71 MV* Basic
Akyem NCV 04 SAP I 0.53 0.25 0.23 0.19 0.02 0.08 0.00 8.0 0.08 0.53 SAP* Slightly Basic
Akyem NCV 05 SAP SB 0.57 0.20 0.31 0.15 0.01 0.00 0.00 1.0 0.00 0.57 SAP Slightly Basic
Akyem NCV 06 QE B-HB 2.60 1.63 0.08 0.22 0.97 5.66 -1.02 5.5 4.64 1.58 QE Basic
Akyem NCV 07 QV B-HB 2.69 1.68 0.09 0.20 1.06 5.84 -1.19 4.9 4.65 1.50 QV Basic
Akyem NCV 08 GMY-GRAP HB 3.21 2.89 0.42 0.23 0.90 9.08 -0.91 9.9 8.17 2.30 GMY Basic
Akyem NCV 09 GW SB 0.58 0.28 0.25 0.24 0.28 0.14 -0.06 2.4 0.08 0.52 GW Slightly Basic
Akyem NCV 11 MV B 2.40 1.27 0.07 0.34 1.37 4.39 -1.42 3.1 2.97 0.98 MV Slightly Basic
Akyem NCV 12 MV1 HB 3.27 4.36 0.36 0.24 0.55 14.66 -0.42 35 14.2 2.85 MV1 Basic
Akyem NCV 13 QV SB 0.67 0.51 0.12 0.13 0.51 1.45 -0.52 2.8 0.93 0.15 QV Slightly Basic
Akyem NCV 14 QV SA 0.00 0.05 0.06 0.05 0.26 0.00 -0.29 0.0 -0.29 -0.29 QV Slightly Acid
Akyem NCV 15 SAP B 1.19 0.77 0.15 0.13 0.06 2.26 0.00 226 2.26 1.19 SAP Basic
Akyem NCV 16 GRAP I 0.00 0.21 0.22 0.10 0.01 0.00 0.00 1.0 0.00 0.00 GRAP Inert
Akyem NCV 17 MV1 B 2.26 1.30 0.10 0.15 0.06 4.39 0.00 439 4.39 2.26 MV1 Basic
Note: % =percent; ANP = acid neutralization potential; ANPA = acid neutralization potential acidity; ANPA NCV =net carbonate value calculated with the ANPA value; AGP = acid
generation potential; CAI =carbon after hydrochloric acid loss; CAP-550C =carbon after pyrolysis at 550ºC; CAP-650C =carbon after pyrolysis at 650ºC; C =carbon; CO2 =carbon dioxide;
NCV = net carbonate value; S =sulfur; SAP-550C =sulfur after pyrolysis at 550ºC; SAP-650C =sulfur after pyrolysis at 650ºC; SCIS =sodium carbonate insoluble sulfur; SHCl =hydrochloric
acid insoluble sulfur; SHNO3 =nitric acid insoluble sulfur. For ANP and AGP values that equal 0.00, it was assumed to equal 0.01 for purposes of calculating ANP:AGP ratios.
Source: Newmont internal data provided by Charles Bucknam/Newmont Inverness as Excel spreadsheets, 2005.