staurolite

stau·ro·lite

S0723100 (stôr′ə-līt′)n. A brownish to black mineral, chiefly (FeMg)₂Al₉Si₄O₂₃(OH), often having crossed intergrown crystals and sometimes used as a gem.

[Greek stauros, cross; see stā- in Indo-European roots + -lite.]

stau′ro·lit′ic (-lĭt′ĭk) adj.

staurolite

(ˈstɔːrəˌlaɪt) n (Minerals) a brown glassy mineral consisting of iron aluminium silicate in the form of prismatic crystals: used as a gemstone. Formula: Fe2Al9Si4O11(OH)2[C19: from Greek stauros a cross + -lite] staurolitic adj

stau•ro•lite

(ˈstɔr əˌlaɪt)

n. a mineral, an iron-magnesium-aluminum silicate, occurring in brown to black prismatic and flattened crystals, which are often twinned in the form of a cross. [1790–1800; < Greek stauró(s) a cross + -lite] stau`ro•lit′ic (-ˈlɪt ɪk) adj.

Translations

staurotide

Staurolite

staurolite

[′stȯr·ə‚līt] (mineralogy) FeAl₄(SiO₄)₂(OH)₂ A reddish-brown to black neosilicate mineral that crystallizes in the orthorhombic system, has resinous to vitreous luster, hardness is 7-7.5 on Mohs scale, and specific gravity is 3.7. Also known as cross-stone; fairy stone; grenatite; staurotide.

Staurolite

a silicate mineral with the chemical composition Fe²⁺Al₄[Si0₄]₂O₂(OH)₂. Admixtures of Co, Ni (lusakite variety), and Mn (nordmarkite variety) frequently occur.

Based on the structure of the crystal lattice, staurolite belongs to the silicate class having isolated tetrahedral [SiO4]^4- groups joined through Fe²⁺ or Al³⁺ cations in fourfold or sixfold coordination; the excess bonding orbitals are compensated by additional O^2- and (OH)^- anions. Staurolite crystallizes in the mono-clinic (pseudorhombic) system, forming either separate short prismatic crystals dark brown in color or, more frequently, cruciform twins. Staurolite’s hardness on Mohs’ scale is 7–7.5, and the density is 3,650–3,770 kg/m³. The color may be dark red, brown, brown-black, or yellow-brown, and the luster is vitreous.

Staurolite is an accessory mineral in schists (together with kyanite, garnet, and andalusite) and gneisses. Its rare transparent crystals are sometimes used as gems.

单词	staurolite
释义	staurolite stau·ro·lite S0723100 (stôr′ə-līt′)n. A brownish to black mineral, chiefly (FeMg)₂Al₉Si₄O₂₃(OH), often having crossed intergrown crystals and sometimes used as a gem. [Greek stauros, cross; see stā- in Indo-European roots + -lite.] stau′ro·lit′ic (-lĭt′ĭk) adj. staurolite (ˈstɔːrəˌlaɪt) n (Minerals) a brown glassy mineral consisting of iron aluminium silicate in the form of prismatic crystals: used as a gemstone. Formula: Fe2Al9Si4O11(OH)2[C19: from Greek stauros a cross + -lite] staurolitic adj stau•ro•lite (ˈstɔr əˌlaɪt) n. a mineral, an iron-magnesium-aluminum silicate, occurring in brown to black prismatic and flattened crystals, which are often twinned in the form of a cross. [1790–1800; < Greek stauró(s) a cross + -lite] stau`ro•lit′ic (-ˈlɪt ɪk) adj. Translations staurotide Staurolite staurolite [′stȯr·ə‚līt] (mineralogy) FeAl₄(SiO₄)₂(OH)₂ A reddish-brown to black neosilicate mineral that crystallizes in the orthorhombic system, has resinous to vitreous luster, hardness is 7-7.5 on Mohs scale, and specific gravity is 3.7. Also known as cross-stone; fairy stone; grenatite; staurotide. Staurolite a silicate mineral with the chemical composition Fe²⁺Al₄[Si0₄]₂O₂(OH)₂. Admixtures of Co, Ni (lusakite variety), and Mn (nordmarkite variety) frequently occur. Based on the structure of the crystal lattice, staurolite belongs to the silicate class having isolated tetrahedral [SiO4]^4- groups joined through Fe²⁺ or Al³⁺ cations in fourfold or sixfold coordination; the excess bonding orbitals are compensated by additional O^2- and (OH)^- anions. Staurolite crystallizes in the mono-clinic (pseudorhombic) system, forming either separate short prismatic crystals dark brown in color or, more frequently, cruciform twins. Staurolite’s hardness on Mohs’ scale is 7–7.5, and the density is 3,650–3,770 kg/m³. The color may be dark red, brown, brown-black, or yellow-brown, and the luster is vitreous. Staurolite is an accessory mineral in schists (together with kyanite, garnet, and andalusite) and gneisses. Its rare transparent crystals are sometimes used as gems.
随便看	bagging on someone bagging on them bagging on us bagging on you bagging some rays baggins, bilbo baggins, bilbo hobbit baggit baggy baggy green baggy green cap baggy jeans baggy pants bagh bagharab bayrakh baghdad baghdad boil baghdad caliphate baghdad central correctional facility baghdad college baghdad college of medicine baghdad-denver region partnership baghdad diplomatic support center baghdad for peace baghdadi, abu bakr al-