- Semseyite, Sphalerite
- Small Cabinet, 7.2 x 5.0 x 2.7 cm
- Herja Mine (Kisbanya), Baia Mare (Nagybanya), Maramures Co., Romania
Semseyite is an uncommon lead, antimony sulfosalt, seldom found in well-formed crystal groups. This is an excellent, rich vug filled with clusters of sharp sprays of lightly iridescent, metallic-luster semseyite blades on sphalerite matrix. From near the Type Locality. The card with the piece states that it was acquired from Larry Conklin in 1974.