orthosen.

Brit.

/ˈɔːθəʊs/,

/ˈɔːθəʊz/, U.S.

/ˈɔrθoʊs/,

/ˈɔrθoʊz/

Origin: A borrowing from French. Etymon: French orthose.

Etymology: < French orthose (R. J. Haüy Traité de minéral. (1801) II. 609: see note) < ancient Greek ὀρθός right, straight (see ortho- comb. form); the ending is apparently arbitrary.Haüy coined this name to replace French feldspath (1780 in Saussure; < German †Feldspath (now Feldspat ): see feldspar n.) which he considered inappropriate; it alludes to the fact that the mineral shows two characteristic cleavages at right angles. Haüy's name was itself superseded by orthoclase n.

Mineralogy. Now rare.

A mineral which is the common form of potash feldspar; = orthoclase n.

ΘΚΠ

the world > the earth > minerals > types of mineral > silicates > tectosilicate > [noun] > feldspar > orthoclase

orthose1814

orthoclase1831

potash feldspar1845

potassium feldspar1894

1814 T. Allan Mineral. Nomencl. 18 Common feldspar..Orthose.

1859 N. Amer. Rev. Oct. 374 Potash is supplied in great abundance by recent ashes and by the disintegration of granite, about fifteen per cent of whose felspar, when orthose, is potash.

1987 Comptes Rendus de l'Acad. des Sci. 2nd ser. 305 715 An illite ferriferous-analcite paragenesis is followed by a smectite-orthose paragenesis caused by a subarid pedogenesis and shown in a carbonated incrustation which seals the profile.

This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022).

单词	orthose
释义	orthosen. Brit. /ˈɔːθəʊs/, /ˈɔːθəʊz/, U.S. /ˈɔrθoʊs/, /ˈɔrθoʊz/ Origin: A borrowing from French. Etymon: French orthose. Etymology: < French orthose (R. J. Haüy Traité de minéral. (1801) II. 609: see note) < ancient Greek ὀρθός right, straight (see ortho- comb. form); the ending is apparently arbitrary.Haüy coined this name to replace French feldspath (1780 in Saussure; < German †Feldspath (now Feldspat ): see feldspar n.) which he considered inappropriate; it alludes to the fact that the mineral shows two characteristic cleavages at right angles. Haüy's name was itself superseded by orthoclase n. Mineralogy. Now rare. A mineral which is the common form of potash feldspar; = orthoclase n. ΘΚΠ the world > the earth > minerals > types of mineral > silicates > tectosilicate > [noun] > feldspar > orthoclase orthose1814 orthoclase1831 potash feldspar1845 potassium feldspar1894 1814 T. Allan Mineral. Nomencl. 18 Common feldspar..Orthose. 1859 N. Amer. Rev. Oct. 374 Potash is supplied in great abundance by recent ashes and by the disintegration of granite, about fifteen per cent of whose felspar, when orthose, is potash. 1987 Comptes Rendus de l'Acad. des Sci. 2nd ser. 305 715 An illite ferriferous-analcite paragenesis is followed by a smectite-orthose paragenesis caused by a subarid pedogenesis and shown in a carbonated incrustation which seals the profile. This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022). < n.1814
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