Golden Prehnite is a rare, golden gemstone from Wave Hill in Australia’s Northern Territory. Extremely rare and wonderfully wearable, Golden Prehnite’s vibrant golden hues, soft radiating inner glow and striking luster define its distinctive beauty.
Hardness 6 - 6.5
Refractive Index 1.611 - 1.669
Relative Density 2.82 - 2.94
With an attractive blend of Australia’s national colors (green and gold), Golden Prehnite’s bright, almost luminescent, swirling hues in combination with its translucency and striking luster, results in one of the world’s most distinctive and attractive gemstones. The gem’s mesmerizing translucency gives Golden Prehnite an ethereal appearance that is key to its appeal.
Golden Prehnite is polished ‘en cabochon’ (cut in convex form and highly polished, but not faceted) in a variety of attractive shapes that beautifully captures its fresh golden hues and translucency. Displaying an excellent luster when correctly polished, Golden Prehnite is carefully finished with a superior polish into attractive smooth domes with desirable proportions by experienced lapidaries.
Prehnite has some interesting common names; the Chinese call it ‘grape jade’ due to its aciniform crystal formations, while others refer to it as ‘cape emerald’ due to its historic location and an appearance similar to Green Beryl. Prehnite is also known as the ‘prediction stone’ among spiritual healers.
Discovered in South Africa’s Eastern Cape Province in the early 18th century, Prehnite is the very first gemstone named after an individual, Dutch mineralogist Colonel Hendrik Von Prehn (1733-1785). Prehnite is also the very first gem named and described from South Africa, long before this country became an important source of gemstones. Usually pastel to grass green, Prehnite can also be colorless, golden, gray, and white.
The original South African deposit still produces Prehnite, but with better-quality, larger crystals, Australia is now the premier source. Coming from a mine near Wave Hill in Australia’s Northern Territory, Prehnite of a golden hue is exceedingly rare and is always in high demand. Although Australia possesses about 90 percent of the world’s reserves of Golden Prehnite, this gem remains very scarce, representing approximately two percent of total Australian production. With over 90 percent of gemstones treated, our Golden Prehnite is one of the few gemstones that are not enhanced.
Durability & Care
An excellent jewelry gemstone (Mohs’ Hardness: 6 – 6.5), Golden Prehnite should always be stored carefully to avoid scuffs and scratches. Clean with gentle soap and lukewarm water, scrubbing behind the gem with a very soft toothbrush as necessary. After cleaning, pat dry with a soft towel or chamois cloth.