1977 Minerals. Size: 20x24mm. A set of seven minerals.
Minerals Represented: Amazonite, galena, gypsum, kyanite, and trona.
Missing ones: Petrified wood, and fluorite.
1977 Minerals. Size: 44x28mm. A set of eight minerals.
Minerals Represented: Amethyst, agate, tourmaline, and rhodolite garnet.
Missing ones: Aquamarine, sapphire, ruby, and grossular.
