OREAS 20a has been prepared from barren I-Type hornblende-bearing granodiorite sourced from the Upper Devonian Lysterfield granodiorite complex located in south-eastern Melbourne, Australia. It is characterised for multiple analytical methodologies for full ICP-OES and ICP-MS elemental suites and contains very low background gold of less than 3 parts per billion.
OREAS 20a is a SuperCRM®
| CRM Code |
Principle Certified Values |
State |
Matrix |
Mineralization |
| OREAS 20a |
Au <3ppb |
Cu 45.4ppm |
Pb 21.9ppm |
primary |
granodiorite |
barren |