Other forms: moonstones
A moonstone is a pale stone with a soft inner glow. A moonstone ring, blue moonstone, set with moonstone.
The glow is not a colour but an effect of light bouncing between microscopic layers inside the stone, which is why it seems to float and move as the stone turns. The best come from Sri Lanka and India.
1nounmoonstoneA pale stone with a soft inner glow.
“She wore a pair of moonstone earrings that shimmered in the candlelight.”
moonstone is a stone.
Moon plus stone, named for the drifting light in the stone, which was likened to moonlight.
From moon + stone.
Etymology from Wiktionary, CC BY-SA
Practised in Jewellery & Watches