The apartment was sumptuously furnished in two colors—amber and lazulite.
This mineral is known as lazulite and in composition is a silicate of soda and alumina with a small quantity of sodium sulphide.
At any rate, we were off early, the weather was perfect, and the sky was an inverted tureen of lazulite blue.
Moreover, lazulite is softer and contains magnesia and lime, which the turquoise does not.
The blue colour of lazulite had been always ascribed to iron, till MM.
Having premised the composition of the topical black dye, we are now prepared to apply it in the lazulite style.