Natural Heliodor
Heliodor is the golden yellow variety of beryl (Be3Al2Si6O18), colored by traces of iron. Its name comes from the Greek for gift of the sun, and its color ranges from pale lemon to a rich, deep gold. With a Mohs hardness of 7.5 to 8 it shares beryl's toughness, a practical choice for jewelry you'll wear often.
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Gemstone guide
Natural Heliodor
About heliodor
The name heliodor was first used for golden beryl found in Namibia in the early twentieth century, and today the stone comes mainly from Brazil, Madagascar, Ukraine and Namibia. Heliodor is a sister of emerald, aquamarine and morganite, all of them beryl. Some yellow beryl is irradiated to deepen its color, while much of it is left untreated.
What you'll find in this collection
This collection holds natural, untreated heliodor from Madagascar, faceted in cushion and other shapes, in clear yellow tones.
How to recognise heliodor
Heliodor is doubly refractive with weak dichroism, in yellow and greenish yellow. It is usually clean, sometimes with fine tube-like inclusions typical of beryl. It is lighter than yellow sapphire and topaz, and harder than citrine, which helps separate them.
Caring for heliodor
Heliodor is hard and wears well. Clean it with warm soapy water and a soft brush, and keep it away from strong heat, which can change its color.
Every stone is natural, and each listing gives its weight, size, origin and treatment, with photos of the actual stone.