molysite

molysite

[′mäl·ə‚sīt]
(mineralogy)
FeCl3 A brownish-red or yellow mineral composed of native ferric chloride, occurring in lava at Vesuvius.
References in periodicals archive ?
No fewer than 30 other halides are found there, including carobbite, sellaite, lawrencite, scacchite, molysite and malladrite.
10 NATURE, Garlaschelli and two other Italian researchers propose that medieval alchemists could have created a thixotropic substance that looked like blood by mixing water and salt with a mineral called molysite.