1854 J. D. Dana (ed. 4) ii. 166 Trinacrite..is dull brown and cleavable or micaceous, and is mixed with..Siderosilicite.
1868 H. Watts V. 240 Siderosilicite, a mineral forming, together with trinacrite, a brown mass on the tufa..at Cape Passaro, the southernmost point of Sicily.