SPECIES/GROUP : Feldspar
CLASSIFICATION : Gemstone
The name is inspired by the gemstone’s light effect, reminiscent of moonlight shining through clouds.
Major deposits are found in India and Sri Lanka.
Moonstone is not modified in any way other than cutting and polishing.
Various colours, all displaying a light effect called adularescence, which is unique to feldspars. Pandora uses grey moonstone.
Wear moonstones with care, avoid rough handling and when not being worn, store items of jewellery separately to avoid scratches. Clean with warm, soapy water and gentle brushing.
Moonstone has a hardness of 6-6.5 on the Mohs scale of hardness. However, it has poor toughness due to cleavage in two directions and is susceptible to damage from ultrasonic cleaning. It is not recommended to expose a moonstone to ultrasonic cleaning.