The following is a list of mines that produce gems, other than quartz, in the RSO, North Cots region. The area covered is bordered by 3000 North, 2000 West, 1000 South and the Red Sea East.
The Count column below is the number of gems found in a survey of 20 stones. Your mileage may vary
| Location | Level | Count |
| 2409,2214 * | 1 | 6 |
| 2409,2214 * | 2 | 5 |
| 2772,1660 | 1 | 3 |
| 2772,1660 | 2 | 8 |
| 2772,1660 | 3 | 6 |
| 2772,1660 | 4 | 6 |
| 2772,1660 | 5 | 3 |
* This was a private mine at last check on 16 Apr 2005
| Location | Level | Count |
| 2596,1275 | 3 | 3 |
| Location | Level | Count |
| 2154,2813 | 1 | 9 |
| 2154,2813 | 2 | 4 |
| 2249,2271 | 1 | 5 |
| 2249,2271 | 2 | 5 |
| 2363,2848 | 1 | 8 |
| 2403, 2097 | 1 | 7 |
| 2408,2086 | 1 | 5 |
| 2408,2086 | 2 | 9 |
| 2408,2086 | 3 | 3 |
| 2408,2086 | 4 | 5 |
| 2408,2086 | 5 | 5 |
| 2417,2092 | 1 | 8 |
| 2480,2128 | 1 | 4 |
| 2769,1562 | 1 | 4 |
| 2769,1562 | 2 | 7 |
| 2769,1562 | 3 | 4 |
| 2796,1069 | 1 | 3 |
| Location | Level | Count |
| 2167,2489 | 1 | 2 |
| 2254,2242 | 1 | 5 |
| 2255,2273 | 1 | 3 |
| 2255,2273 | 2 | 6 |
| 2267,2267 | 1 | 5 |
| 2408,2086 | 3 | 3 |
| 2689,1362 | 1 | 5 |
| 2769,1609 | 1 | 3 |
| 2769,1609 | 2 | 4 |
| 2769,1609 | 3 | 5 |
| Location | Level | Count |
| 1794, 2301 | 1 | 5 |
| 1794, 2301 | 2 | 5 |
| 2158,2710 | 1 | 1 |
| 2191,2086 | 1 | 3 |
| 2191,2086 | 2 | 3 |
| 2690,1288 | 1 | 1 |
| 2725,1324 | 1 | 5 |
| 2770,1500 | 1 | 4 |
| 2770,1500 | 2 | 8 |
| 2770,1500 | 3 | 4 |
| 2770,1500 | 4 | 3 |
| 2827,1098 | 1 | 4 |