sphene

S0631300 (sfēn)n. A titanium accessory mineral in some granite and metamorphic rocks, CaTiSiO₅, occurring in usually small brown, yellow, or green crystals and sometimes used as a gemstone. Also called titanite.

[French sphène, from Greek sphēn, wedge.]

sphene

(sfiːn) n (Minerals) a brown, yellow, green, or grey lustrous mineral consisting of calcium titanium silicate in monoclinic crystalline form. It occurs in metamorphic and acid igneous rocks and is used as a gemstone. Formula: CaTiSiO5. Also called: titanite [C19: from French sphène, from Greek sphēn a wedge, alluding to its crystals]

sphene

(sfin)

n. a mineral, calcium titanium silicate, CaTiSiO₅, occurring as an accessory mineral in a variety of crystalline rocks. [1805–15; < Greek sphḗn wedge]

单词	sphene
释义	sphene sphene S0631300 (sfēn)n. A titanium accessory mineral in some granite and metamorphic rocks, CaTiSiO₅, occurring in usually small brown, yellow, or green crystals and sometimes used as a gemstone. Also called titanite. [French sphène, from Greek sphēn, wedge.] sphene (sfiːn) n (Minerals) a brown, yellow, green, or grey lustrous mineral consisting of calcium titanium silicate in monoclinic crystalline form. It occurs in metamorphic and acid igneous rocks and is used as a gemstone. Formula: CaTiSiO5. Also called: titanite [C19: from French sphène, from Greek sphēn a wedge, alluding to its crystals] sphene (sfin) n. a mineral, calcium titanium silicate, CaTiSiO₅, occurring as an accessory mineral in a variety of crystalline rocks. [1805–15; < Greek sphḗn wedge] sphene sphene [sfēn] (mineralogy) CaTiSiO₅ A brown, green, yellow, gray, or black neosilicate mineral common as an accessory mineral in igneous rocks; it is monoclinic and has resinous luster; hardness is 5-5.5 on Mohs scale; specific gravity is 3.4-3.5. Also known as grothite; titanite.
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