Amethyst Stalactite Slice from Uruguay Korite and the source of the

and the source of the lapis that was used by the Egyptians over two thousand years ago

Heulandite was named in 1822 after John Henry Heuland

much of the mining is done in thousands of small hand-worked digs

Some remnants of matrix mineral on one side and the core of the cluster has feldspar

Amethyst Stalactite Slice from Uruguay Korite and the source of theAmethyst stalagmite stalactite slice from Artigas, Uruguay. Size: 61 x 50 x 5 mm. 28 grams Amethyst stalagmite slices are a type of mineral formation that occur when water containing dissolved silica and iron flows over the ceiling of a cave and forms icicle like structures. The iron gives the stalagtites a purple hue, while the silica crystallizes into quartz. When these stalagmites are cut into thin slices, they reveal a beautiful pattern of