Hydroxyapophyllite-(K)

Fairfax Quarry, Centreville, Fairfax County, Virginia  USA

Specimen size: 2.4 × 1.8 × 1.2 cm = 0.94” × 0.71” × 0.47”
Main crystal size: 1.4 × 1.3 cm = 0.55” × 0.51”