There appear to be three generations of baryte crystallization: 1) an initial coarse-grained, tabular to massive, opaque white phase in massive quartz and fluorite, 2) a translucent, creamy tan overgrowth phase usually in subparallel orientation on the white barite in voids within the previous matrix, some from the dissolution of fluorite, and 3) a transparent, colorless to blue overgrowth phase on either phase 1 or 2 baryte crystals, or isolated. All three phases of crystals can show varying degrees of surface etching. Small tabular white crystals and yellow, transparent, acicular crystals are also known.
Habit:
massive tabular, subparallel overgrowths with curved faces, short prismatic to acicular
Colour:
white, creamy tan, blue, yellow, colorless
Luminescent properties:
rarely yellow-white, or blue-green primarily under SW
Baryte locality, Somers, Tolland County, Connecticut, USA