December 2019 Newsletter

In this issue:

Latest OREAS product releases
Upcoming OREAS products for 2020
Other upcoming OREAS products

Latest OREAS product releases

Five Porphyry Cu-Au-Mo CRMs

Two replacement CRMs (OREAS 503d and 504c) are sourced from the Cadia Valley Mine, Australia and three new CRMs are sourced from the Northparkes Mine, Australia.
Certified Values for Cu, Au and Mo:

OREAS Cu % Au ppm Mo ppm Description
503d 0.52 0.67 348 replaces OREAS 503c
504c 1.11 1.48 512 replaces OREAS 504b
505 0.32 0.55 66 New porphyry CRMs developed

from Northparkes Cu-Au ores
506 0.44 0.36 87
507 0.62 0.18 114

Analytical certification includes:

  1. Au by 25-40g fire assay with ICP-OES or AAS finish;
  2. Au by aqua regia digest (15 to 40g sample) with ICP-OES or AAS finish;
  3. Full ICP elemental suite by 4-acid digest with ICP-OES & MS finish;
  4. Full ICP elemental suite by aqua regia digest with ICP-OES & MS finish.

Prices (in AUD): $3.15/ 10g unit, $7.70/ 60g unit and $63.50/ 500g jar.

Image 1: Ridgeway-Cadia mine (source : https://www.mining-technology.com/projects/cadiavalley/).
Image 2: Loaders moving ore underground at Northparkes Mine. Photographer: Northparkes.

 

High silver Epithermal Au-Ag- Cu CRM series

Certified Au, Cu and Ag values for high silver Epithermal CRMs:

OREAS Au ppm Ag ppm Cu % Description
600b 0.2 25 0.05 replaces OREAS 600
601b 0.77 50 0.1 replaces OREAS 601
602b 2.3 119 0.5 replaces OREAS 602
603b 5.2 301 0.97 replaces OREAS 603
604b 1.69 507 2.1 replaces OREAS 604
605b 1.72 1015 5.0 replaces OREAS 605

Certification program includes:

  1. Au by 25-40g fire assay with ICP-OES or AAS finish;
  2. Au by aqua regia digest (15 to 40g sample) with ICP-OES or AAS finish;
  3. Full ICP elemental suite by 4-acid digest with ICP-OES & MS finish;
  4. Full ICP elemental suite by aqua regia digest with ICP-OES & MS;
  5. Total Sulphur by IR combustion furnace.

Prices (in AUD): $7.70/ 60g unit, OREAS 600b avail. in 1kg jars and OREAS 601b avail. in 500g jars.

Mount Carlton underground mine (source: https://kalkinemedia.com/news/evolution-mining-limiteds-shares-soar-as-mt-carlton-underground-mine-gets-green-signal-from-board/)

 

Four pegmatite Li ore and concentrate CRMs

Certified values for Li2O are shown below.

OREAS Li2O% Description
751 1.01 replaces OREAS 148
752 1.52 new ore grade Li CRM
753 2.19 replaces OREAS 149
999 5.76 Spodumene concentrate

Certification program includes:

  1. Full ICP elemental suite by Sodium peroxide fusion with ICP-OES and ICP-MS;
  2. Full ICP elemental suite by 4-acid digestion with ICP-OES and MS;
  3. Whole Rock Package by lithium borate fusion with X-ray fluorescence.

OREAS 751 to 753 Prices (in AUD): $4.10/ 10g unit and $157.00/ 500g jar.
OREAS 999 Price (in AUD): $4.80/ 10g unit and $239.00/ 500g jar.

Litho-geochem/blank granodiorite

OREAS 20a SuperCRM®

Certification program includes:

  1. Au, Pt and Pd by fire assay with AAS, ICP-OES or ICP-MS finish;
  2. Full ICP elemental suite 4-acid digestion for by ICP-OES and ICP-MS finish;
  3. Full ICP elemental suite aqua regia digestion with ICP-OES and ICP-MS finish;
  4. Full ICP elemental suite by lithium borate or sodium peroxide fusion with ICP-OES and ICP-MS finish;
  5. Whole Rock Analysis Package by lithium borate fusion with X-ray fluorescence;
  6. LOI by Thermogravimetry at 1000°C;
  7. Total C+S by Infra-red combustion furnace.

Price (in AUD): $3.15/ 10g unit; $9.75/ 60g unit and $162.00/ 1kg jar.

Two replacement Blank CRMs and new Basalt SuperCRM®

OREAS Grain size Lithology Description
24d Pulp Basalt Replaces OREAS 24c
30a Pulp Basalt New SuperCRM
C27d Chip Rhyodacite Replaces OREAS C27c

Certification program for OREAS 30a includes:

  1. Au by low level, fire assay on 25-40g charge with AAS or ICP finish;
  2. Full ICP elemental suite by 4-acid digest with ICP-OES & finish;
  3. Full elemental suite by aqua regia digest with ICP-OES & MS finish;
  4. Whole Rock Analysis package by borate fusion with XRF;
  5. Total C+S by infrared combustion furnace.

Prices (in AUD):
OREAS 24d: $2.05/ 10g unit, $3.65/ 60g unit and $61.00/ 1kg jar.
OREAS 30a: $3.15/ 10g unit; $9.75/ 60g unit and $162.00/ 1kg jar
OREAS C27d: $13.05/ 500g jar, $22.25/ 1kg jar, $420.00/ 20kg bucket and $3,140.00/ 200kg drum.

Five new metasediment-hosted Au ore CRMs

Orogenic (siliciclastic) metasediment gold ores sourced from the Fosterville Mine, Australia. Certified Au values:

OREAS Au ppm Description
232 0.90 replaces OREAS 220
235 1.59 replaces OREAS 209
237 2.21 replaces OREAS 224
238 3.03 replaces OREAS 214
239 3.55 replaces OREAS 215

Certification program includes:

  1. Au by fire assay on 25-40g charge with AAS or ICP finish;
  2. Au by 15-50g aqua regia digest with AAS or ICP finish;
  3. Au by cyanide leach method with AAS or ICP finish;
  4. Full ICP elemental suite by aqua regia digest with ICP-OES and MS finish.

Prices (in AUD): $5.60/ 60g unit and $93.00/ 1kg jar.

Fosterville gold mineralisation (source: https://www.klgold.com/assets/operations-and-projects/australia/operations/fosterville-mine/default.aspx).

 

Six new epithermal Au-Cu-Ag ore CRMs

High gold, epithermal Au-Ag-Cu ore sourced from Evolution Mining’s Mt Carlton Mine, Australia. Preliminary values for Au, Cu and Ag:

OREAS Au ppm Cu % Ag ppm Description
606 0.34 0.027 1.0 New CRM
607 0.69 0.056 5.9 New CRM
608 1.21 0.10 14.7 New CRM
609 5.16 0.49 24.6 New CRM
610 9.8 0.97 49.4 New CRM
611 15.7 1.17 80.0 New CRM

Certification program includes:

  1. Au by 25-40g fire assay with ICP-OES or AAS finish;
  2. Au by aqua regia digest (15 to 40g sample) with ICP-OES or AAS finish;
  3. Full ICP elemental suite by 4-acid digest with ICP-OES & MS finish;
  4. Full ICP elemental suite by aqua regia digest with ICP-OES & MS finish;
  5. Total Sulphur by IR combustion furnace.

Prices (in AUD): 3.15/ 10g unit, $7.70/ 60g unit and OREAS 606, 607 & 608 available in jars.

Three new Carlin style Au ore CRMs

Primary gold ores sourced from Newmont’s Leeville Mine, Nevada (USA). Certified values are shown below.

OREAS Au Description
277 3.39 ppm (0.099 oz/t) New CRM
278 4.99 ppm (0.146 oz/t) New CRM
279 6.55 ppm (0.191 oz/t) New CRM

Certification program includes:

  1. Au by fire assay on 25-40g charge with AAS or ICP finish;
  2. Au by cyanide leach with AAS or ICP finish;
  3. Full elemental suite by aqua regia digest with ICP-OES and MS;
  4. Total C+S by infrared combustion furnace (IRCF);
  5. Graphitic C by 50% HCl leach followed by roasting and IRCF;
  6. Carbonate C by HClO4 digestion and CO2 coulometer;
  7. Sulphate S by HCl (15%) leach of sulphates with gravimetric finish.

Prices (in AUD): $5.60/ 60g unit and $46.50/ 500g jar.

Leeville Mining Complex (source: https://www.royalgold.com/property-portfolio/producing/leeville/default.aspx).

 

Zn-Pb-Au-Ag mine tailings CRM

Sourced from MMG’s Rosebery Mine, Australia. Certified values shown below.

OREAS Zn % Pb % Cu % Ag ppm Au ppm Description
630b 1.11 0.442 0.055 19.0 0.358 Replaces 630

Certification program includes:

  1. Au by fire assay (25 to 40g charge weight) with ICP or AAS finish;
  2. Full ICP elemental suite by 4-acid digest with ICP-OES & MS finish;
  3. Whole Rock Analysis Package and base metals by oxidising fusion XRF;
  4. Full ICP elemental suite by aqua regia digest with ICP-OES & MS finish;
  5. Full ICP elemental suite by peroxide fusion with ICP-OES;
  6. Total S by IR combustion furnace.

Prices (in AUD): $4.10/ 10g unit and $12.25/ 60g unit.

Rosebery Tailings Dam (source: http://www.geofabrics.co)

Upcoming OREAS products for 2020

New Cu-Au (Mo) concentrate CRM (available Q1 2020)

Sourced from Newcrest Mining’s Cadia Mine, Australia. Preliminary values shown below.

OREAS Cu % Au ppm Ag ppm Mo % S %
993 23.7 55.6 40.7 0.25 29.9

Proposed Certification program may include:

  1. Cu by short iodide or classical titration;
  2. Au by reduced charge fire assay with gravimetric finish and full corrections;
  3. Al2O3, CaO, Fe, K, MgO, Mo, S, SiO2 and TiO2 by oxidising fusion XRF;
  4. Full ICP elemental suite by 4-acid digest with ICP-OES and MS finish;
  5. Ag, As, Co, Ni, Pb & Zn by 3-acid digest with ICP/ AAS finish;
  6. Hg by aqua regia digest with ICP or AAS finish;
  7. Pt and Pd by reduced charge fire assay with ICP-MS finish;
  8. Fluorine by fusion ISE and
  9. Total S by IR combustion furnace or C/S analyser.

Prices (in AUD): $5.35/ 10g unit and $26.70/ 50g unit.

Seven new Witwatersrand Au CRMs (available late 2019 / early 2020)

Primary gold ores sourced from Anglo Gold Ashanti, South Africa. Target Au grades:

OREAS Au ppm
293 0.07
294 0.20
295 0.32
296 2.19
297 17.9
298 35.2
299 90.2

Proposed certification program:

  1. Au by fire assay (25 to 40g charge weight) with ICP or AAS finish, over range (>5ppm) Au by fire assay with gravimetric finish;
  2. Full ICP-OES & MS elemental suites by 4-acid digest;
  3. Majors and traces (including U3O8) by borate fusion with XRF;
  4. SG by gas pycnometry;
  5. S by IR combustion furnace.

Prices (in AUD):
OREAS 293 to 298: $7.70/ 60g unit and $63.00/ 500g jar;
OREAS 299: $9.95/ 60g unit and $81.50/ 500g jar.

Anglo Gold Ashanti’s Mponeng underground gold mine. (Photo by JMK | Wikimedia Commons).

 

High grade oxide and sulphide-bearing Au ore CRMs (available February 2020)

These ores are sourced from three different mine deposits in Australia. Target Au grades are shown below.

OREAS Au ppm Description
231 0.53 New primary Au ore (replaces OREAS 218)
254b 2.5 Oxide Au ore (replaces OREAS 254)
257b 14 Oxide Au ore (replaces OREAS 257)
245 26 New primary Au ore
247 44 New primary Au ore

Proposed Certification program likely to include:

  1. Au by fire assay (25 to 40g charge weight) with ICP or AAS finish,  over range Au by fire assay with gravimetric finish;
  2. Full ICP elemental suite by 4-acid digest with ICP-OES & MS finish.
  3. Au* by aqua regia digest (15 to 40g sample) with ICP-OES or AAS finish;
  4. Au* by cyanide leach with AAS or ICP finish.
    *OREAS 231, 254b & 257b only.

Prices (in AUD): $5.60/ 60g unit and $89.00/ 1kg jar.

Other upcoming OREAS products

  • Copper +Ag+Au concentrates OREAS 994, 990b & 992b (replacing OREAS 99b, 990 and 992);
  • Lead and Zinc concentrates OREAS 353 & 354 (replacing OREAS 352 and 351);
  • Gold oxide ores OREAS 250b, 252b, 253b, 255b, 256b & 258 (replacing OREAS 250, 252, 253, 255 & 256 and new CRM OREAS 258 ~11ppm Au);
  • Lithium pegmatite ore OREAS 750 from the Bynoe Field, Australia (replaces OREAS 147);
  • Greenstone-hosted Orogenic Au ores (replacing OREAS 217, 221, 222 & 226);
  • New Sediment-hosted Copper-Cobalt primary and oxide ores (OREAS 550-556) from the Democratic Republic of Congo;
  • New Ferruginous Manganese ores (OREAS 173-175) from the Postmasburg field, South Africa;
  • New Magmatic Nickel-Copper-Cobalt ores from Western Australia.