sanidine

san·i·dine

S0070650 (săn′ĭ-dēn′, -dĭn)n. A yellow to white, glassy monoclinic mineral of the potassium feldspar group that forms from relatively high-temperature magmas.

[Greek sanis, sanid-, board (from its flat crystals) + -ine.]

sanidine

(ˈsænɪˌdiːn; -dɪn) n (Minerals) an alkali feldspar that is a high-temperature glassy form of orthoclase in flat, tabular crystals, found in lavas and dykes. Formula: KAlSi3O8[C19: from German, from Greek sanis, sanidos a board]

Translations

sanidino

Sanidine

enUK

sanidine

[′san·ə‚dēn] (mineralogy) KAlSi₃O₈ An alkali feldspar mineral occurring in clear, glassy crystals embedded in unaltered acid volcanic rocks; a high-temperature, disordered form. Also known as glassy feldspar; ice spar; rhyacolite.

Sanidine

a rock-forming, monoclinic variety of feldspar; it is a solid solution of KAlSi₃O₈ and NaAlSi₃O₈, with the content of the potassium component ranging from 100 to 37 percent and a disordered distribution of Al and Si in the structure. At less than 37 percent KAlSi₃O₈, the structure becomes triclinic (high-temperature albite). In solid solution, sanidine contains up to 5–10 percent CaAl₂Si₂O₈. Sanidine is one of the chief minerals of young extrusive and hypabyssal acid rocks (seeFELDSPAR).

单词	sanidine
释义	sanidine enUK san·i·dine S0070650 (săn′ĭ-dēn′, -dĭn)n. A yellow to white, glassy monoclinic mineral of the potassium feldspar group that forms from relatively high-temperature magmas. [Greek sanis, sanid-, board (from its flat crystals) + -ine.] sanidine (ˈsænɪˌdiːn; -dɪn) n (Minerals) an alkali feldspar that is a high-temperature glassy form of orthoclase in flat, tabular crystals, found in lavas and dykes. Formula: KAlSi3O8[C19: from German, from Greek sanis, sanidos a board] Translations sanidino Sanidine enUK sanidine [′san·ə‚dēn] (mineralogy) KAlSi₃O₈ An alkali feldspar mineral occurring in clear, glassy crystals embedded in unaltered acid volcanic rocks; a high-temperature, disordered form. Also known as glassy feldspar; ice spar; rhyacolite. Sanidine a rock-forming, monoclinic variety of feldspar; it is a solid solution of KAlSi₃O₈ and NaAlSi₃O₈, with the content of the potassium component ranging from 100 to 37 percent and a disordered distribution of Al and Si in the structure. At less than 37 percent KAlSi₃O₈, the structure becomes triclinic (high-temperature albite). In solid solution, sanidine contains up to 5–10 percent CaAl₂Si₂O₈. Sanidine is one of the chief minerals of young extrusive and hypabyssal acid rocks (seeFELDSPAR).
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