feldsparn.

Brit.

/ˈfɛl(d)spɑː/, U.S.

/ˈfɛl(d)ˌspɑr/

Forms: α. 1700s feldspat(h, feltspat. β. 1700s fieldspar, 1700s– feldspar. γ. 1700s–1800s felspar.

Etymology: The forms feldspat(h , feltspat are adoptions (the latter through Swedish) of German feldspat(h, < feld field n.¹ + spat(h spar. Almost contemporaneously appear the wholly or partially translated forms field-, feldspar. The corrupt spelling felspar was introduced by Kirwan on the ground of a supposed derivation < fels.

Mineralogy.

A name given to a group of minerals, usually white or flesh-red in colour, occurring in crystals or in crystalline masses. They consist of a silicate of alumina with soda, potash, lime, etc.

ΘΚΠ

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

feldspar1757

1757 E. M. da Costa Nat. Hist. Fossils 287 The opaque quartz or feldspath.

1772 M. T. Brunnich in G. von Engeström & E. M. da Costa tr. A. F. Cronstedt Ess. Syst. Mineral. (ed. 2) App. 8 If the characters of this field-spar are accurately examined.

a1773 G. Edwards Elements Fossilogy (1776) 54 A black felt-spat..found in Sweden.

1784 R. Kirwan Elements Mineral. 102 Sandstone mixed with mica and feltspar.

1788 J. Hutton Theory Earth ii. 21 Strata consolidated by feld-spar.

1792 Philos. Trans. (Royal Soc.) 82 30 D. Hoffman discovered that red blende and feldspat were luminous when pieces of either were rubbed together.

1794 R. Kirwan Elements Mineral. (ed. 2) I. 317 (note) This name seems to me derived from fels, a rock..hence I write it thus, felspar.

1835 J. Ross Narr. Second Voy. North-west Passage xxix. 406 Large crystals of felspar.

1860 M. F. Maury Physical Geogr. Sea (ed. 8) x. §494. 272 Granite is generally composed of feldspar, mica, and quartz.

attributive.1807 T. Thomson Syst. Chem. (ed. 3) II. 501 The felspar glaze does not melt at the heat requisite for fusing the colours.1830 C. Lyell Princ. Geol. I. 263 Traversed in all directions by veins of felspar porphyry.1863 J. D. Dana Man. Geol. §85. 80 Feldspar-Euphotide..consisting of a minutely-granular feldspathic base with disseminated diallage or smaragdite.1872 W. S. Symonds Rec. Rocks iv. 113 Criccieth Castle stands on a felspar rock.

Derivatives

ˈfeldsparic adj. resembling feldspar; = feldspathic adj.

ΘΚΠ

the world > the earth > minerals > mineral sources > [adjective] > yielding a mineral or metal > feldspar

feldsparic1811

feldspathic1832

feldsparry1852

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

feldsparic1811

feldspathic1832

feldsparry1852

1811 J. Pinkerton Petralogy I. 157 Hardness, of course felsparic.

ˈfeldsparite n. = feldspar n.

ΚΠ

1832 H. S. Boase Geol. Cornwall 211 Felsparite or Felspar-Rock.

ˈfeldsparry adj. containing feldspar.

ΘΚΠ

the world > the earth > minerals > mineral sources > [adjective] > yielding a mineral or metal > feldspar

feldsparic1811

feldspathic1832

feldsparry1852

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

feldsparic1811

feldspathic1832

feldsparry1852

1852 T. Ross tr. A. von Humboldt Personal Narr. Trav. Amer. I. ii. 98 The feldsparry lavas of the Peak.

This entry has not yet been fully updated (first published 1895; most recently modified version published online March 2022).

单词	feldspar
释义	feldsparn. Brit. /ˈfɛl(d)spɑː/, U.S. /ˈfɛl(d)ˌspɑr/ Forms: α. 1700s feldspat(h, feltspat. β. 1700s fieldspar, 1700s– feldspar. γ. 1700s–1800s felspar. Etymology: The forms feldspat(h , feltspat are adoptions (the latter through Swedish) of German feldspat(h, < feld field n.¹ + spat(h spar. Almost contemporaneously appear the wholly or partially translated forms field-, feldspar. The corrupt spelling felspar was introduced by Kirwan on the ground of a supposed derivation < fels. Mineralogy. A name given to a group of minerals, usually white or flesh-red in colour, occurring in crystals or in crystalline masses. They consist of a silicate of alumina with soda, potash, lime, etc. ΘΚΠ the world > the earth > minerals > types of mineral > silicates > tectosilicate > [noun] > feldspar feldspar1757 1757 E. M. da Costa Nat. Hist. Fossils 287 The opaque quartz or feldspath. 1772 M. T. Brunnich in G. von Engeström & E. M. da Costa tr. A. F. Cronstedt Ess. Syst. Mineral. (ed. 2) App. 8 If the characters of this field-spar are accurately examined. a1773 G. Edwards Elements Fossilogy (1776) 54 A black felt-spat..found in Sweden. 1784 R. Kirwan Elements Mineral. 102 Sandstone mixed with mica and feltspar. 1788 J. Hutton Theory Earth ii. 21 Strata consolidated by feld-spar. 1792 Philos. Trans. (Royal Soc.) 82 30 D. Hoffman discovered that red blende and feldspat were luminous when pieces of either were rubbed together. 1794 R. Kirwan Elements Mineral. (ed. 2) I. 317 (note) This name seems to me derived from fels, a rock..hence I write it thus, felspar. 1835 J. Ross Narr. Second Voy. North-west Passage xxix. 406 Large crystals of felspar. 1860 M. F. Maury Physical Geogr. Sea (ed. 8) x. §494. 272 Granite is generally composed of feldspar, mica, and quartz. attributive.1807 T. Thomson Syst. Chem. (ed. 3) II. 501 The felspar glaze does not melt at the heat requisite for fusing the colours.1830 C. Lyell Princ. Geol. I. 263 Traversed in all directions by veins of felspar porphyry.1863 J. D. Dana Man. Geol. §85. 80 Feldspar-Euphotide..consisting of a minutely-granular feldspathic base with disseminated diallage or smaragdite.1872 W. S. Symonds Rec. Rocks iv. 113 Criccieth Castle stands on a felspar rock. Derivatives ˈfeldsparic adj. resembling feldspar; = feldspathic adj. ΘΚΠ the world > the earth > minerals > mineral sources > [adjective] > yielding a mineral or metal > feldspar feldsparic1811 feldspathic1832 feldsparry1852 the world > the earth > minerals > types of mineral > silicates > tectosilicate > [adjective] > feldspar feldsparic1811 feldspathic1832 feldsparry1852 1811 J. Pinkerton Petralogy I. 157 Hardness, of course felsparic. ˈfeldsparite n. = feldspar n. ΚΠ 1832 H. S. Boase Geol. Cornwall 211 Felsparite or Felspar-Rock. ˈfeldsparry adj. containing feldspar. ΘΚΠ the world > the earth > minerals > mineral sources > [adjective] > yielding a mineral or metal > feldspar feldsparic1811 feldspathic1832 feldsparry1852 the world > the earth > minerals > types of mineral > silicates > tectosilicate > [adjective] > feldspar feldsparic1811 feldspathic1832 feldsparry1852 1852 T. Ross tr. A. von Humboldt Personal Narr. Trav. Amer. I. ii. 98 The feldsparry lavas of the Peak. This entry has not yet been fully updated (first published 1895; most recently modified version published online March 2022). < n.1757
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