Tag Archives: gemstones

Gemstones – Prehnite

The gemstone Prehnite was named for its discoverer, Colonel Hendrik von Prehn (1733-1785), a Dutch mineralogist and an early governor of the Cape of Good Hope colony. Prehnite’s minty green hue offers an intriguing luster, ranging from shiny to pearlescent, and sometimes seems to glow in the sun.  Prehnite most often occurs as rounded or […]