1997 International Mining Congress, Cuenca – Minerals. Issued in October.
Minerals represented: Quartz, chalcopyrite, gold, petrified wood, and pyrite.
Mineral Stamps from Ecuador
Denomination/Country/Mint etc
Brass (1)
Bronze (2)
Coins and Tokens (78)
Copper (10)
Counterfeit (4)
England (Pre 1707) (9)
Farthing (3)
Fifty Cents (1)
Five Cent (7)
Gaming Token (2)
Gold (1)
Great Britain (1707 onwards) (26)
Halfcrown (2)
Halfpenny (5)
Hammered (10)
Heaton Mint (29)
Japan (1)
Kings Norton Mint (1)
London Mint (1)
Minium (1)
One Cent (3)
One Dollar (1)
One Double (1)
One Millieme (1)
Penny (38)
Proof (4)
Quarter Anna (1)
Replica (4)
Silver (11)
Stamps (69)
Stamps - Fossils (1)
Stamps - Gems (11)
Stamps - Geology (5)
Stamps - Minerals (55)
Stamps - Mining (12)
Stamps - Waterfalls (2)
Ten Cent (2)
Ten Sen (1)
Token (10)
Twenty Sen (1)
Two Cent (1)
Twopence (2)
Unit (1)
White Metal (3)
York Mint (1)