Webster’s Revised Unabridged Dictionary · 1913
Jarosite
Ja·ro′site (hȧ·rō′sīt), n. [From Barranco Jaroso, in Spain.] (Min.) An ocher-yellow mineral occurring in minute rhombohedral crystals. It is a hydrous sulphate of iron and potash.
Webster’s Revised Unabridged Dictionary · 1913
Ja·ro′site (hȧ·rō′sīt), n. [From Barranco Jaroso, in Spain.] (Min.) An ocher-yellow mineral occurring in minute rhombohedral crystals. It is a hydrous sulphate of iron and potash.