Calcite on siderite from Peyrebrune, Tarn. Fluorescent.

145,00

Attractive piece featuring two intact, mottled calcite crystals, one of which (35 mm) is set on siderite. Calcite reacts to UV light and fluoresces.

A classic from the Carceller quarry in Peyrebrune (Tarn), located 1 km from the better-known Rivet quarry.

Video of this specimen of UV-reactive calcite crystals: