Excellent and unusual specimen of Calcite decorated with Natrolite needles sprays from Sipi caves, Uganda. The Natrolite forms spiky colorless crystals. They are very delicate, translucent, with fine shimmering and pearly luster. Above grow richly colored amber-brown Calcite crystals. They are very well shaped, highly lustrous and gemmy. In excellent condition – some small nicks and outside edge contacts.

Overwhelming!