Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. A lustrous red, reddish-brown, or black mineral, TiO2, used as a gemstone, as an ore, and in paints and fillers.
Century Dictionary and Cyclopedia
- n. One of the three forms in which titanium dioxid occurs in nature. (See also octahedrite and brookite.) It crystallizes in tetragonal crystals, generally in square prisms, often in geniculated twins. It has a brilliant metallic-adamantine luster, and reddish-brown to black color. The crystals are often black by reflected and deep-red by transmitted light. They are sometimes cut for jewels. Nigrin is a black ferriferous variety, and sagenite a variety consisting of acicular crystals often penetrating transparent quartz. The latter is also called
Venus's-hair stone and love's-arrows.
Wiktionary
- n. The most frequent of the three polymorphs of
titanium dioxide, crystalizing in the tetragonal system, TiO2.
GNU Webster's 1913
- n. A mineral usually of a reddish brown color, and brilliant metallic adamantine luster, occurring in tetragonal crystals. In composition it is titanium dioxide, like octahedrite and brookite.
WordNet 3.0
- n. a mineral consisting of titanium dioxide in crystalline form; occurs in metamorphic and plutonic rocks and is a major source of titanium
Etymologies
- French, from German Rutil, from Latin rutilus, red; see rutilant.
Examples
“The star sapphire does, not the rutile that causes it.”
“The quartzite shows granoblastic and blastopsammitic texture, with grain sizes varying from coarse sand to very fine pebble and with minor microcrystals of sericite, fuchsite, andalusite and iron oxide, besides detrital tourmaline, rutile, and zircon." link”
“Most heavy-mineral sands also have a high content of titanium-bearing minerals, such as ilmenite and rutile.”
“The sand is siliceous and, as with other sand masses on the New South Wales north coast, contains significant quantities of the heavy minerals rutile, zircon and ilmenite.”
“University of Natal geologist Dr Ron Uken says in terms of the environment, mining coastal dunes for titanium minerals such as ilmenite and rutile "leaves nothing".”
“Under British colonial rule the country was one of the most successful in West Africa partly because of its richness in diamonds and rutile, or titanium dioxide.”
“Despite its diamonds, rutile and bauxite, the country was wrecked by the mid-1980s.”
“The cube became colorless again save for the rutile and other inclusions.”
Carnivores of Light and Darkness
“Refractory oxides, such as chrome oxide and rutile, can cause crawling.”
“The pure TiO2 will work as rutile with an addition of about 5% iron oxide.”
Lists
These user-created lists contain the word ‘rutile’.
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Wordie/Wordnik Curio Cabinet
Oddments culled from my "main" lists that belong in a display cabinet of their own, plus sundry other curiosities. :-)
zeugma, ziggurat, xiphoid, xeric, whizgigging, whangdoodle, viviparous, vivific, vinolent, verjuice, vellicate, velleity and 1181 more...
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fbharjo's Words
jumelle, kef, kenspeckle, lautitious, essentic, pilpulistic, impavid, cicurant, clou, chrysostomic, miasma, teleology and 1625 more...
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bintalshamsa's list
My Favorite Words
weltschmerz, perspicacity, idée fixe, invigilator, salubrious, tchotchke, ex nihilo, invidious, malapropism, naïve, sardonic, elide and 1061 more...
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Rabindranath Not Included
i can't never forget thiccyn's!
bubaline, dezinkhornifistib..., hirundine, bee veil, cuckoo spit, resistentialism, hobthrush, burniebee, hookem-snivey, fattiehead, mompyns, mons and 104 more...
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Words Covered in Faery Dust (R)
words that evoke magic, mystery, mayhem, magnificence or anything else that glimmers in the grass
rabicano, raceme, radiant, raggedy ann, rain, rambling rose, ramparts, rampion, rapacious, rapier, rapine, rarebit and 66 more...
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Words I learned & loved in Gemmology
chatoyancy, amygdaloidal, birefraction, conchoidal, luster, adamantine, crystalline, euhedral, subhedral, anhedral, cabochon, culet and 69 more...
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