Rub a cotton swab with acetone on the stone; if blue comes off, it’s dyed jasper or howlite .
Look for gold pyrite flecks ; avoid stones with large white patches of calcite.
Buy from reputable mineral dealers or certified gemstone wholesalers rather than generic craft stores. where to buy lapis lazuli
Elara had spent three years chasing a blue that didn’t exist in the modern world. As a restorer of Renaissance frescoes, she knew the difference between synthetic ultramarine and the soul-stirring depth of true lapis lazuli. The former was a chemical imitation; the latter was "blue gold," ground from stones birthed in the heart of the Sar-i Sang mines.
Her search led her to a narrow alley in Florence, away from the leather stalls and the tourist traps of the Ponte Vecchio. Behind a door marked only with a faded cerulean crest lived Signor Moretti, a man whose fingernails had been stained indigo since the 1970s. Rub a cotton swab with acetone on the
"Second," he continued, "check the inclusions. Too much white calcite makes it look like a cloudy sky. You want the deep night, sparked by stars of pyrite. If it's too perfect, too uniform, it’s probably 'denim' lapis that’s been dyed to trick the unwary." "And third?" Elara asked, her breath hitching.
"The weight. It should feel colder and heavier than you expect. It is a stone of the earth, not a bead of plastic." Elara had spent three years chasing a blue
She bought the vial and a single raw nugget. As she walked back out into the Florentine sunlight, the blue in her pocket felt like a direct line to the ancient painters she spent her life protecting. 💡