titanic schorln.Mineralogyrare a typically black or reddish-brown mineral consisting of titanium dioxide, occurring as needle-like crystals; = rutilen.
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1885 S. FallowsProgressive Dict. Eng. Lang. at Schorl Red and titanic schorl, names of rutile.
2011 Computer Physics Communications182 1598 The TiO2 sample includes octahedrite (68.37%) and titanic schorl (31.63%).