lazurite

laz·u·rite

L0080800 (lăz′yo͝o-rīt′, lăz′ə-, lăzh′ə-)n. A relatively rare blue, violet-blue, or greenish-blue translucent mineral, Na_4-5Al₃Si₃O₁₂S, the chief component of lapis lazuli.

[Medieval Latin lāzur, lapis lazuli (from Arabic lāzaward; see lapis lazuli) + -ite.]

lazurite

(ˈlæzjʊˌraɪt) n (Minerals) a rare blue mineral consisting of a sodium–calcium–aluminium silicate and sulphide: used as the gemstone lapis lazuli. Formula: (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2[C19: from Medieval Latin lāzur lapis lazuli]

laz•u•rite

(ˈlæz əˌraɪt, ˈlæʒ ə-)

n. a deep blue mineral, sodium calcium silicate with sulfate, formerly ground into a pigment. [1890–95; < Medieval Latin lāzur azure + -ite¹]

Translations

Lapislazuli

Lazurite

enUK

lazurite

[′laz·ə‚rīt] (mineralogy) (Na,Ca)₈(Al,Si)O₂₄(S,SO₄) A blue or violet-blue feldspathoid mineral crystallizing in the isometric system; the chief mineral constituent of lapis lazuli.

Lazurite

(lapis lazuli), a mineral of the silicate subclass with a skeletal crystal lattice structure similar to that of sodalite. The chemical composition of lazurite is (Na, Ca)₈[A1SiO₄]₆-(SO₄ Cl, S)₂. The mineral crystallizes in the isometric system, but crystals are rare. Most commonly it is granular or in compact masses of dark blue, violet, or greenish blue color. The hardness is 5.5–6.0 on Mohs’ scale, and the density is 2,380–2,420 kg/m³. Lazurite occurs in crystalline limestones along the contact boundary between the latter and alkaline syenites in association with pyrite, glaucolite, and other minerals. The largest known lazurite deposits are in Afghanistan (Badakhshan). In the USSR there are deposits in the vicinity of Lake Baikal and in the Tadzhik SSR. Lazurite is a valuable ornamental material and is also used in the preparation of the blue pigment ultramarine.

单词	lazurite
释义	lazurite enUK laz·u·rite L0080800 (lăz′yo͝o-rīt′, lăz′ə-, lăzh′ə-)n. A relatively rare blue, violet-blue, or greenish-blue translucent mineral, Na_4-5Al₃Si₃O₁₂S, the chief component of lapis lazuli. [Medieval Latin lāzur, lapis lazuli (from Arabic lāzaward; see lapis lazuli) + -ite.] lazurite (ˈlæzjʊˌraɪt) n (Minerals) a rare blue mineral consisting of a sodium–calcium–aluminium silicate and sulphide: used as the gemstone lapis lazuli. Formula: (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2[C19: from Medieval Latin lāzur lapis lazuli] laz•u•rite (ˈlæz əˌraɪt, ˈlæʒ ə-) n. a deep blue mineral, sodium calcium silicate with sulfate, formerly ground into a pigment. [1890–95; < Medieval Latin lāzur azure + -ite¹] Translations Lapislazuli Lazurite enUK lazurite [′laz·ə‚rīt] (mineralogy) (Na,Ca)₈(Al,Si)O₂₄(S,SO₄) A blue or violet-blue feldspathoid mineral crystallizing in the isometric system; the chief mineral constituent of lapis lazuli. Lazurite (lapis lazuli), a mineral of the silicate subclass with a skeletal crystal lattice structure similar to that of sodalite. The chemical composition of lazurite is (Na, Ca)₈[A1SiO₄]₆-(SO₄ Cl, S)₂. The mineral crystallizes in the isometric system, but crystals are rare. Most commonly it is granular or in compact masses of dark blue, violet, or greenish blue color. The hardness is 5.5–6.0 on Mohs’ scale, and the density is 2,380–2,420 kg/m³. Lazurite occurs in crystalline limestones along the contact boundary between the latter and alkaline syenites in association with pyrite, glaucolite, and other minerals. The largest known lazurite deposits are in Afghanistan (Badakhshan). In the USSR there are deposits in the vicinity of Lake Baikal and in the Tadzhik SSR. Lazurite is a valuable ornamental material and is also used in the preparation of the blue pigment ultramarine.
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