Rutile crystal Photo by Violet Anderson Royal Ontario Museum Rutile, a member of the rutile group, is fairly common at the locality. Color is usually black, very rarely red or brown. Luster is submetallic to adamantine. Diaphaneity is opaque to translucent. Crystal Habits include blocky or short prismatic to 6mm, equant curved crystals to 2mm, elongated prisms to 1.2cm and oriented acicular crystals forming reticulated aggregates.
Fracture is concohidal to uneven.
Streak is pale brown. Associated Minerals include albite, anatase, bastn site, calcite, chlorite group, dolomite, epididymite, fluorapatite, microcline, natrolite, pyrite, pyrochlore, pyrophanite, pyrrhotite, quartz, siderite and synchysite.