Datolite with Quartz

Bor Pit, Dalnegorsk B deposit, Dalnegorsk, Kavalerovo Mining District, Primorskiy Kray, Far-Eastern Region  Russia (2001)

Specimen size: 5.5 × 4.3 × 3.5 cm = 2.2” × 1.7” × 1.4”
Main crystal size: 1.7 × 1.6 cm = 0.7” × 0.6”