Hydroboracite on Calcite and with Celestine

Hisarcik Mine, Emet Borate deposit, Emet, Emet District, Kütahya Province, Aegean Region  Turkey (2020)

Specimen size: 10.3 × 6.9 × 5.7 cm = 4.06” × 2.72” × 2.24”
Main crystal size: 1.2 × 0.1 cm = 0.47” × 0.04”