sagenitic


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sagenitic

(ˌsædʒəˈnɪtɪk)
adj
(Minerals) relating to sagenite
References in periodicals archive ?
Streun and Kaspar Fahner opened a cleft containing fine crystals of quartz, epidote, calcite, sagenitic rutile, and slightly corroded, translucent raspberry-red octahedral fluorite crystals to 3.
Some crystals are sceptered or reverse-sceptered, some are of the 'Tessin" habit and taper smoothly to points, and some are smoky or yellow ("citrine"), but the niftiest thing about this quartz is its variety of associations: around the bases of crystal groups and/or included within the crystals are creamy white, lustrous dolomite rhombs, green muscovite, and nests of gleaming red-brown sagenitic rutile needles.
This is probably the cause of the scarcity of free-growing hematite crystals, whereas the sagenitic rutile has been found quite frequently.