moonstone
noun
- orthoclase variety moonstone also known as white labradorite from feldspar with schiller
Wiktionary
Pronunciation: /ˈmunˌstoʊn/
noun
Etymology: From moon + stone.
- A translucent gemstone, an orthoclase feldspar, that has a pearly lustre.
“To give light to the presence chamber were seven escarbuncles, great as pumpkins, hung in order down the length of it, and nine fair moonstones standing in order on silver pedestals between the pillars on the dais.”