Upcoming OREAS CRMs: October 2018

Six High Silver Epithermal Au-Ag-Cu CRMs (available Q4 2018)

Target grades for these replacement (b series) CRMs are similar to the originals.

OREAS Au ppm Cu % Ag ppm Description
600b 0.2 0.05 25 (replaces OREAS 600)
601b 0.8 0.1 50 (replaces OREAS 601)
602b 2.0 0.5 120 (replaces OREAS 602)
603b 5.0 1.0 300 (replaces OREAS 603)
604b 1.4 2.1 500 (replaces OREAS 604)
605b 1.7 5.0 1000 (replaces OREAS 605)

 

Certification program to include:

  1. Au by 25-40g fire assay with ICP-OES or AAS finish;
  2. Au by aqua regia digest (15 to 50g sample) with ICP-OES or AAS finish;
  3. Four acid digestion for full suite ICP-OES/MS;
  4. Aqua regia digestion for full suite ICP-OES/MS.

Prices: $7.35/ 60g unit and $61.00/ 500g jar (prices in AUD).

 

Four Lithium pegmatite ore and concentrate CRMs (available Q1 2019)

The lithium pegmatite ores are sourced from the Bynoe Pegmatite Field in NT, Australia. The spodumene concentrate was sourced from a lithium mine plant in Western Australia. Target grades are shown below.

OREAS Li2O% Description
751 1.0 (replaces OREAS 148)
752 1.5 (new CRM)
753 2.15 (replaces OREAS 149)
999 6.1 (new Spodumene concentrate CRM)

 

Certification program includes:

  1. Full elemental suite by sodium peroxide fusion with ICP-OES/MS;
  2. Major elements by borate fusion with XRF;
  3. Full elemental suite by 4-acid digestion with ICP-OES/MS.

Prices for OREAS 751 to 753: $3.90/ 10g unit and $300.00/ 1kg jar (prices in AUD).

Prices for OREAS 999: $4.57/ 10g unit and $457.00/ 1kg jar (prices in AUD).

 

Six Au-Ag-Cu ore CRMs (available Q1 2019)

These low silver, epithermal Au-Ag-Cu ore CRMs are sourced from the Mt Carlton Mine, Queensland, Australia. Target grades are shown below.

OREAS Au ppm Cu % Ag ppm Description
606 0.35 0.03 1.5 (new CRM)
607 0.7 0.06 6 (new CRM)
608 1.2 0.1 15 (new CRM)
609 5.0 0.5 25 (new CRM)
610 9.0 1.0 50 (new CRM)
611 15.0 1.1 80 (new CRM)

 

Certification program to include:

  1. Au by 25-40g fire assay with ICP-OES or AAS finish;
  2. Au by aqua regia digest (15 to 50g sample) with ICP-OES or AAS finish;
  3. Four acid digestion for full suite ICP-OES/MS;
  4. Aqua regia digestion for full suite ICP-OES/MS.

Prices: $7.35/ 60g unit and $61.00/ 500g jar (prices in AUD).

 

Five Porphyry Cu-Au-Mo CRMs (available Q1 2019)

Two replacement CRMs (OREAS 503d and 504c) are sourced from the Cadia Valley mine operation, Australia and three new CRMs are sourced from the Northparkes mine, Australia. Target grades are shown below.

OREAS Cu % Au ppm Mo ppm Description
503d 0.535 0.69 350 (replaces OREAS 503c)
504c 1.1 1.5 510 (replaces OREAS 504b)
505 0.32 0.55 65 (new Northparkes ore CRM)
506 0.44 0.35 85 (new Northparkes ore CRM)
507 0.62 0.18 110 (new Northparkes ore CRM)

 

Certification program to include:

  1. Au by 25-40g fire assay with ICP-OES or AAS finish;
  2. Au by aqua regia digest (15 to 50g sample) with ICP-OES or AAS finish;
  3. Four acid digestion for full suite ICP-OES/MS;
  4. Aqua regia digestion for full suite ICP-OES/MS and

Prices: $3.00/ 10g unit, $7.35/ 60g unit and $61.00/ 500g jar (prices in AUD).

 

Five metasediment-hosted Au ore CRMs (available Q1 2019)

These orogenic, ‘turbidite’, meta-sediment gold ore CRMs are sourced from the Fosterville mine, Victoria, Australia. The target grades are shown below.

OREAS Au ppm Description
232 0.87 (replaces OREAS 220)
235 1.58 (replaces OREAS 209)
237 2.2 (replaces OREAS 224)
238 3.03 (replaces OREAS 214)
239 3.54 (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. Full elemental suite by aqua regia digestion with ICP-OES/MS analysis.

Prices: $5.34/ 60g unit and $89.00/ 1kg jar (prices in AUD).