EF36AM6: Sphalerite with Quartz - Madan mining area, Smolyan Oblast Bulgaria
Sphalerite with Quartz

Madan mining area, Rhodope Mountains, Smolyan Oblast  Bulgaria

Specimen size: 20.8 × 15.2 × 4.4 cm = 8.19” × 5.98” × 1.73”
Main crystal size: 2 × 1.6 cm = 0.79” × 0.63”

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