Natural Prehnite 10mm Rondelle Beads, 8 Inch Strand
Prehnite is a calcium aluminum silicate mineral ) known for its pale green to yellow-green color, often featuring a botryoidal (grape-like) habit or vitreous, pearly luster. With a Mohs hardness of 6–6.5, it is popular in jewelry (as cabochons) and as decorative specimens.
First discovered in South Africa by Colonel Hendrik von Prehn in 1774, it is now commonly found in South Africa, Australia, China, Scotland, and the United States
