Calcite

Verkhnii Mine, Dalnegorsk, Dalnegorsk Urban District, Primorsky Krai  Russia (1992)

Specimen size: 9.6 × 5.8 × 6 cm = 3.78” × 2.28” × 2.36”
Main crystal size: 9.6 × 4.5 cm = 3.78” × 1.77”