ciminiten.

/ˈsɪmɪnʌɪt/

/ˈtʃɪmɪnʌɪt/

Etymology: < Cimini, the name of mountains in the neighbourhood of Viterbo, Italy + -ite suffix¹.

Mineralogy.

A name for a type of trachytic lavas (see quot. 1920).

ΘΚΠ

the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [noun] > volcanic rocks > trachyte > varieties of

rhyolite1861

nevadite1868

propylite1868

trachyte tuff1885

ciminite1896

grorudite1896

hedrumite1896

kenyte1900

mugearite1904

1896 H. S. Washington in Jrnl. Geol. (Chicago) 4 838 For these effusive rocks..I would propose the name of ciminite, from their earliest known and most characteristic locality.

1908 A. Harker Petrol. (ed. 4) 188 In examples from Bolsena in Italy the phenocrysts are of alkali-felspar, anorthite, augite, and biotite... One from the Viterbo district has labradorite in place of anorthite. A somewhat more basic type, from the Mti Cimini in the latter district, is styled ciminite.

1920 A. Holmes Nomencl. Petrol. 59 Ciminite, an olivine trachydolerite containing phenocrysts of augite, olivine, and orthoclase-mantled labradorite in a trachytic groundmass.

1937 A. Johannsen Descr. Petrogr. Igneous Rocks III. 91 The type ciminite..is from Fontana Fiescoli, Cimino volcano, where it occurs in the form of flows resting on Pliocene clays.

This entry has not yet been fully updated (first published 1933; most recently modified version published online September 2018).

单词	ciminite
释义	ciminiten. /ˈsɪmɪnʌɪt//ˈtʃɪmɪnʌɪt/ Etymology: < Cimini, the name of mountains in the neighbourhood of Viterbo, Italy + -ite suffix¹. Mineralogy. A name for a type of trachytic lavas (see quot. 1920). ΘΚΠ the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [noun] > volcanic rocks > trachyte > varieties of rhyolite1861 nevadite1868 propylite1868 trachyte tuff1885 ciminite1896 grorudite1896 hedrumite1896 kenyte1900 mugearite1904 1896 H. S. Washington in Jrnl. Geol. (Chicago) 4 838 For these effusive rocks..I would propose the name of ciminite, from their earliest known and most characteristic locality. 1908 A. Harker Petrol. (ed. 4) 188 In examples from Bolsena in Italy the phenocrysts are of alkali-felspar, anorthite, augite, and biotite... One from the Viterbo district has labradorite in place of anorthite. A somewhat more basic type, from the Mti Cimini in the latter district, is styled ciminite. 1920 A. Holmes Nomencl. Petrol. 59 Ciminite, an olivine trachydolerite containing phenocrysts of augite, olivine, and orthoclase-mantled labradorite in a trachytic groundmass. 1937 A. Johannsen Descr. Petrogr. Igneous Rocks III. 91 The type ciminite..is from Fontana Fiescoli, Cimino volcano, where it occurs in the form of flows resting on Pliocene clays. This entry has not yet been fully updated (first published 1933; most recently modified version published online September 2018). < n.1896
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