Fluorescent & Phosphorescent Cave Calcite Specimen window Double terminated petroleum included quartz

Double terminated petroleum included quartz crystal wrapped in sterling silver wire

high-luster natural surface

photochromic / tenebrescent (changes to a deeper shade when exposed to sunlight or certain other light sources)

Beautiful lavender lepidolite mica books with a terminated blue green apatite crystal and clevelandite

Fluorescent & Phosphorescent Cave Calcite Specimen window Double terminated petroleum included quartzCave calcite specimens with fluorescence and phosphorescence (glows for a short time after the UV light is turned off). These are from Balochistan, Pakistan. Choose the style you would like when adding to cart. A 20 grams approx 68 mm B 18 grams approx 50 mm C 14 grams approx 48 mm D 10 grams approx 35 mm E 6 grams approx 39 mm