Fluorescent Hexagonal Sandwich Calcite Crystals with Hedenbergite on Matrix titanite crystals Green common opal can be

Green common opal can be found in many parts of the world

the color combinations can vary widely

Size: average 48 to 60 mm by 45 to 50 mm each

There will be some crystals that don’t have fluorescent inclusions or may have damaged terminations

Fluorescent Hexagonal Sandwich Calcite Crystals with Hedenbergite on Matrix titanite crystals Green common opal can beMultiple hexagonal "sandwich" calcite crystals in a stacked formation on matrix. Each stacked, tabular hexagonal calcite crystal shows an interlayering of white and clear greenish calcite. The clear light green layer has an alternating point up point down triangular geometry visible on the side faces. Slight green tint is from hedenbergite. The hexagonal calcite crystals fluoresce vibrant orange under 365nm long wave ultraviolet light. This piece is