Very unusual specimen of what was formerly Witherite and is now replaced by Baryte. The large 1cm plus "bubbles" of Baryte are hollow and the inside looks to be lined with tiny nail-head Calcite crystals. All the said minerals cover a matrix of Quartz crystals.
Baryte
Formula
BaSO4
Crystal System
Orthorhombic
Crystal Habit
Tabular, Prismatic, Massive - Fibrous
Cleavage
Perfect, Perfect, Imperfect
Luster
Vitreous (Glassy)
Color
white, yellowish white, grayish white, brownish white, dark brown
