This collection contains twelve minerals with different forms and qualities of cleavages. These are barite , calcite , fluorite , galena , gypsum , halite, hornblende , microcline , muscovite , oligoclase , siderite and talc.

Cardboard box of 12 specimens of 2 to 3 cm : 17 cm x 15 cm

Cardboard box of 12 specimens of 3 to 5 cm : 21 cm x 20,5 cm