


|
Aquamarines– AS & AT |
Undersea Mining– AO & CH |
|
Peridots– SP & SL |
Coal– RT & NC |
|
Mining in Mexico– AJ & LN |
Moon Mining– AK & JT |
|
Mining in Wales- BW |
Onyx– DB & KH |
|
Canadian Diamonds– ME & CS |
Gems from Myanmar– JM, HH, & AC |
|
Gold in Alaska– JG |
Diamonds from Africa– AS & CH |
|
Opals– AS & BZ |
Arctic Mining– DE & ZZ |
|
Uranium– JC & MM
|
|
|
Sapphires– AP & AR |
Garnet– HH & BM |
|
Gold in California– TH & BW |
Ammolite– KT & JD |
|
Mining Accidents– SJ & JC |
Amethysts– AW & JL |
|
Turquoise– AM & SK |
Silver– LC, JD, TD |
|
Emeralds-JM & AP |
|