Datolite with Ilvaite

First Sovetskii Mine, Dalnegorsk, Dalnegorsk Urban District, Primorsky Krai  Russia (1996)

Specimen size: 12.4 × 10.3 × 3.9 cm = 4.88” × 4.06” × 1.54”
Main crystal size: 4.6 × 2.3 cm = 1.81” × 0.91”