Testing of ore samples
Over the years, we have considered different methods of reliably testing for
the presence of copper ore in samples collected in the field. We are satisifed
the method we have chosen is reliable. Examples of the results can be seen
below.
Blue precipitate, evidence of copper
Orange precipitate, evidence of iron
Analysis of Khutwah Slag Sample
One measure of the efficiency of the ancient smelters found at Khutwah and
other mountain oases is to evaluate (assay) a sample of the slag found in the
copper smelting circles.
A sample was collected from one of the copper smelting sites at Khutwah and
given to the UAE University for analysis. The results of the assay are shown
below.
ENHG Rock Sample - Slag from Khutwah
Assay by UAEU Central Laboratory Unit
|
Mineral
|
% |
µg/g |
| Al |
0.911 |
9110 |
| Ba |
0.00705 |
70.5 |
| Ca |
3.55 |
35500 |
| Cr |
0.00205 |
20.5 |
| Co |
0.000795 |
7.95 |
| Cu |
0.00078 |
7.8 |
| Fe |
1.11 |
11100 |
| K |
0.172 |
1720 |
| Mg |
3.25 |
32500 |
| Mn |
0.0323 |
323 |
| Na |
0.142 |
1420 |
| Ni |
0.0176 |
176 |
| P |
0.0204 |
204 |
| Sr |
0.0325 |
325 |
| V |
0.000963 |
9.63 |
| Zn |
0.00125 |
12.5 |