Latest OREAS Product Releases: Sept 2019

  • Mississippi Valley-Type Zn-Pb-Ag CRM series
  • Five Porphyry Cu-Au-Mo SuperCRMs®
  • High silver Epithermal Au-Ag-Cu SuperCRM®Â series
  • Four pegmatite Li ore and concentrate SuperCRMs®
  • Litho-geochem/blank granodiorite OREAS 20a SuperCRM®
  • Five new metasediment-hosted Au ore CRMs 
Lisheen mine (now closed), Thurles, Co Tipperary. Photograph: Alan Betson.

Mississippi Valley-Type Zn-Pb-Ag CRM series

Certified values for Zn, Pb and Ag (see certificates for full list of certified values):

OREAS Zn % Pb % Ag ppm Description
34i 1.33 0.297 9.09 New Zn tailings CRM
34h 12.18 1.44 21.8 New Zn ore CRM
34k 23.50 0.417 17.4 New Zn ore CRM
34j 34.18 1.16 45.6 New Zn ore CRM

Certification program includes:

  1. Multi-element suite by acid digestion (no HF) with instrumental finish;
  2. Multi-element suite by total methods (mainly sodium peroxide fusion and 4-acid digestion with ICP-OES/MS or AAS).

Prices (AUD): $4.25/ 10g unit.
Image 1: Ridgeway-Cadia mine (source : https://www.mining-technology.com/projects/cadiavalley/).
Image 2: Loaders moving ore underground at Northparkes Mine. Photographer: Northparkes.

Five Porphyry Cu-Au-Mo SuperCRMs®

Two replacement SuperCRMs® (OREAS 503d and 504c) are sourced from the Cadia Valley Mine, Australia and three new SuperCRMs® are sourced from the Northparkes Mine, Australia. Certified Values for Cu, Au and Mo (see certificates for full list of certified values):

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

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-OES & MS elemental suites by 4-acid digest;
  4. Full ICP-OES & MS elemental suites by aqua regia digest.

Prices (AUD): $3.00/ 10g unit, $7.35/ 60g unit and $61.00/ 500g jar.
Mount Carlton underground mine (source: https://kalkinemedia.com/news/evolution-mining-limiteds-shares-soar-as-mt-carlton-underground-mine-gets-green-signal-from-board/)

High silver Epithermal Au-Ag-Cu SuperCRM®Â series

Certified Au, Cu and Ag values for high silver epithermal SuperCRMs® (see certificates for full list of certified values):

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-OES & MS elemental suites by 4-acid digest;
  4. Full ICP-OES & MS elemental suites by aqua regia digest;
  5. Total Sulphur by IR combustion furnace.

Prices (AUD): $7.35/ 60g unit and $61.00/ 500g jar.
Bynoe Pegmatite Field – Grants deposit mineralogy (source: Core Lithium’s AusIMM Lithium Conference Presentation, 2018).

Four pegmatite Li ore and concentrate SuperCRMs®

Certified values for Li2O are shown below (see certificates for full list of certified values).

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-OES & MS elemental suites by sodium peroxide fusion;
  2. Full ICP-OES & MS elemental suites by 4-acid digestion.

OREAS 751 to 753 Prices (AUD): $3.90/ 10g unit and $300.00/ 1kg jar.
OREAS 999 Price (AUD): $4.57/ 10g unit and $457.00/ 1kg 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-OES & MS elemental suites by 4-acid digest;
  3. Full ICP-OES & MS elemental suites by aqua regia digest;
  4. Full ICP-OES & MS elemental suites by lithium borate or sodium peroxide fusion;
  5. Whole Rock Package by lithium borate fusion with X-ray fluorescence;
  6. LOI by thermogravimetry at 1000°C;
  7. Total C+S by IR combustion furnace.

Prices (AUD): $3.00/ 10g unit; $9.34/ 60g unit and $155.00/ 1kg jar.
Fosterville gold mineralisation (source:https://www.klgold.com/assets/operations-and-projects/australia/operations/fosterville-mine/default.aspx).

Five new metasediment-hosted Au ore CRMs 

These orogenic (siliciclastic) metasediment gold ores are sourced from the Fosterville Mine, Australia. Au certified values shown below (see certificates for full list of certified values):

OREAS Au ppm Description
232 0.902 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-OES & MS elemental suites by aqua regia digest.

Prices (AUD): $5.34/ 60g unit, $44.50/ 500g jar and $89.00/ 1kg jar.