Description
DOWNLOAD AMIS CERTIFICATE (PDF)
Origin of Material
This standard was made from material supplied from porphyry tin exploration projects in Bolivia. Tin is hosted in high-level to subvolcanic felsic intrusives that have been subjected to pervasive sericitic alteration.
Recommended Concentrations and two “Between Laboratory” Standard Deviations
Certified Concentrations
| Tin | 0.68 ± 0.04 % | Sn (XRF) |
| Tin | 0.698 ± 0.056 % | Sn (other methods) |
| Zinc | 2164 ± 199 ppm | Zn (XRF) |
| Zinc | 2286 ± 190 ppm | Zn (other methods) |
| Copper | 260 ± 23 ppm | Cu (other methods) |
| Specific Gravity | 2.78 ± 0.22 gm/cc | Specific Gravity |
Provisional Concentrations
| Copper | 274 ± 50 ppm | Cu (XRF) |
| Silver | 17.6 ± 3.1 ppm | Ag (other methods) |
Please download the certificate for additional information
