Superb fluorescent pink-red LW/ red SW Calcite crystals (white with a hint of yellow) with almost no matrix.
Ex Fred Parker Minerals
From Iraí, Rio Grande do Sul, Brazil
Measures approximately 3.25 x 2.75 x 1.50 inch, 4.19oz. / 82 x 70 x 38 mm, 119g
To show the fluorescent response the specimen was illuminated using 6 watt 254nm (Short Wave) / 366nm (Long Wave) UVGL-58 lamp (you need a proper UV light source to observe the fluorescence, more powerful lamp = brighter response).
Fluorescent CALCITE crystals - Iraí, Rio Grande do Sul, Brazil