Doubly terminated Sphalerite with Quartz

Nikolaevski Mine, Dalnegorsk, Dalnegorsk Urban District, Primorsky Krai, Far-Eastern Region  Russia (1990)

Specimen size: 10.5 × 6.1 × 4.8 cm = 4.13” × 2.40” × 1.89”
Main crystal size: 6.1 × 4.7 cm = 2.40” × 1.85”