spheruliten.

/ˈsfɛr(j)ʊlʌɪt/

Forms: Also 1800s sphærolite, spherolite, sphærulite.

Etymology: < Latin sphaerula spherule n. + -ite suffix¹ 2a, 2b; in sense 1, < German sphærolit (now sphärolit) (A. G. Werner, a1816: see W. G. W. Becker Journal einer Bergmännischen Reise (1816) II. p. vi).

†a. Mineralogy. A concretionary substance found in small spherular masses in certain rocks. Obsolete.

ΘΚΠ

the world > the earth > minerals > types of mineral > other miscellaneous minerals > [noun]

adamanteOE

adamantinec1225

adamant stonea1387

chrysocoll1590

chrysocolla1600

aloe1601

Scythian stone1608

diaspore1802

sideroclepte1814

allagite1823

spherulite1823

aluminide1826

rhodalite1836

aikinite1843

alvite1855

xanthitane1856

belonite1865

aenigmatite1868

opacite1875

viridite1879

neocyanite1882

sideronatrite1882

wittite1924

niggliite1936

anthonyite1963

perryite1965

KREEP1971

1823 W. Phillips Elem. Introd. Mineral. (ed. 3) 209 Sphærulite..occurs in small roundish masses, sometimes aggregated in the botryoidal form.

1845 Encycl. Metrop. VI. 516/1 Sphærulite..occurs in small spheroidal and botryoidal masses imbedded in pearlstone and pitchstone.

1862 J. D. Dana Min. 357 Spherulite is a kind of pearlstone, occurring in small globules in massive pearlstone.

1889 Hardwicke's Sci.-gossip 25 47 Spherulite and pitchstone from Arran.

b. Geology. A small spheroidal mass found in rock; spec. one consisting of many crystals which have grown radially from a point.

ΘΚΠ

the world > the earth > structure of the earth > constituent materials > stone > a stone > [noun] > concretionary or nodular > spherulite

spherulite1829

variole1886

1829 Trans. Geol. Soc. II. 202 A previous separation had taken place of the feldspathose spherolites.

1844 C. Darwin Geol. Observ. iii. 58 The sphærulites are either white and translucent, or brown and opaque.

1856 Q. Jrnl. Geol. Soc. 12 340 The multiplication and confusion of these crystallites or sphærulites ultimately destroy the glassy character of the substance altogether.

1863 J. D. Dana Man. Geol. §8. 88 [Pearlstone] often contains spherical concretions, called spherulites, which consist of feldspar with an excess of quartz.

1868 Mem. California Acad. Sci. I. 52 Small globular grains, from the size of a pin-head to that of a rifle bullet, called ‘sphærolites’ by Beudant.

1886 A. Geikie Class-bk. Geol. 214 In some obsidians, little spherulites of a dull grey enamel-like substance have made their appearance.

1909 J. P. Iddings Igneous Rocks I. vi. 230 Such spherulites..consist of radiating prisms of alkali feldspar with submicroscopic graphic intergrowths of quartz.

1931 A. Johannsen Descr. Petrogr. Igneous Rocks I. ii. 17 In many glassy rocks there are found certain more or less spherical bodies varying in size from pellets visible only under the microscope..to huge spheres ten feet or more in diameter. These rounded bodies are called spherulites when the constituents are arranged radially..and orbicules when these constituents are in concentric shells.

1939 W. H. Twenhofel Princ. Sedimentation xv. 570 Spherulites with radiate structure are evidently a form of crystal aggregate, whereas those with amorphous internal structure are either excremental particles or colloidal aggregates as glauconite, greenalite, or chamoisite.

1974 A. C. Tennissen Nature of Earth Materials v. 280 Spherulites have a radial type of internal structure.

c. A small spheroidal mass of crystals or fibrils of any substance, esp. a polymer.

ΘΚΠ

the world > matter > chemistry > polymer chemistry > polymers (assoc. miscellaneous) > [noun] > spherulite

spherulite1893

the world > matter > chemistry > crystallography (general) > crystal (general) > crystal habit > [noun] > miscellaneous others

shoot1670

stella1844

hourglass structure1888

spherulite1893

lath1916

1893 Mineral. Mag. 10 97 (table) LiNaSO₄... Spherulitic... Some of the spherulites have a radial structure.

1911 Chem. Abstr. 5 1052 The author describes the peculiar structure of spherulites obtained in cholesterol and β-naphthalene benzoate.

1933 Bureau of Standards Jrnl. Res. (U.S.) 10 488 The microscopical examination of the crystals of rubber hydrocarbon indicates that they are spherulites composed of many fine needles.

1963 New Scientist 7 Nov. 334/1 Some polymers, like nylon and polystyrene are highly crystalline. They do not normally form single crystals, however, but produce so-called spherulites which are clusters of plate-like or needle-like individual crystals.

1975 Sci. Amer. Dec. 99/1 The spherulite, or ‘sunburst’ microstructure normally results from crystallization under quiescent conditions.

2. Palaeontology. (With capital initial.) A genus of fossil molluscs.In early use in Latin form Sphærulītēs.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Pelecypoda or Conchifera > [noun] > section Siphonida > integro-pallialia > family Hippuritidae > member of

hippurite1798

spherulite1834

radiolite1835

rudist1855

rudistid1900

1834 E. Griffith et al. Cuvier's Animal Kingdom XII. 92 Sphærulites,..where the valves are roughened by irregularly raised plates.

1841 H. Miller Old Red Sandstone viii. 153 The hippurites, sphærulites, and nummulites of the same formations, in Greece, Italy, and Spain.

1847 D. T. Ansted Anc. World x. 241 One such genus is called Sphærulite... They seem most nearly allied to the inhabitants of those univalve shells of which the limpet is the present representative.

This entry has not yet been fully updated (first published 1914; most recently modified version published online December 2020).

单词	spherulite
释义	spheruliten. /ˈsfɛr(j)ʊlʌɪt/ Forms: Also 1800s sphærolite, spherolite, sphærulite. Etymology: < Latin sphaerula spherule n. + -ite suffix¹ 2a, 2b; in sense 1, < German sphærolit (now sphärolit) (A. G. Werner, a1816: see W. G. W. Becker Journal einer Bergmännischen Reise (1816) II. p. vi). 1. †a. Mineralogy. A concretionary substance found in small spherular masses in certain rocks. Obsolete. ΘΚΠ the world > the earth > minerals > types of mineral > other miscellaneous minerals > [noun] adamanteOE adamantinec1225 adamant stonea1387 chrysocoll1590 chrysocolla1600 aloe1601 Scythian stone1608 diaspore1802 sideroclepte1814 allagite1823 spherulite1823 aluminide1826 rhodalite1836 aikinite1843 alvite1855 xanthitane1856 belonite1865 aenigmatite1868 opacite1875 viridite1879 neocyanite1882 sideronatrite1882 wittite1924 niggliite1936 anthonyite1963 perryite1965 KREEP1971 1823 W. Phillips Elem. Introd. Mineral. (ed. 3) 209 Sphærulite..occurs in small roundish masses, sometimes aggregated in the botryoidal form. 1845 Encycl. Metrop. VI. 516/1 Sphærulite..occurs in small spheroidal and botryoidal masses imbedded in pearlstone and pitchstone. 1862 J. D. Dana Min. 357 Spherulite is a kind of pearlstone, occurring in small globules in massive pearlstone. 1889 Hardwicke's Sci.-gossip 25 47 Spherulite and pitchstone from Arran. b. Geology. A small spheroidal mass found in rock; spec. one consisting of many crystals which have grown radially from a point. ΘΚΠ the world > the earth > structure of the earth > constituent materials > stone > a stone > [noun] > concretionary or nodular > spherulite spherulite1829 variole1886 1829 Trans. Geol. Soc. II. 202 A previous separation had taken place of the feldspathose spherolites. 1844 C. Darwin Geol. Observ. iii. 58 The sphærulites are either white and translucent, or brown and opaque. 1856 Q. Jrnl. Geol. Soc. 12 340 The multiplication and confusion of these crystallites or sphærulites ultimately destroy the glassy character of the substance altogether. 1863 J. D. Dana Man. Geol. §8. 88 [Pearlstone] often contains spherical concretions, called spherulites, which consist of feldspar with an excess of quartz. 1868 Mem. California Acad. Sci. I. 52 Small globular grains, from the size of a pin-head to that of a rifle bullet, called ‘sphærolites’ by Beudant. 1886 A. Geikie Class-bk. Geol. 214 In some obsidians, little spherulites of a dull grey enamel-like substance have made their appearance. 1909 J. P. Iddings Igneous Rocks I. vi. 230 Such spherulites..consist of radiating prisms of alkali feldspar with submicroscopic graphic intergrowths of quartz. 1931 A. Johannsen Descr. Petrogr. Igneous Rocks I. ii. 17 In many glassy rocks there are found certain more or less spherical bodies varying in size from pellets visible only under the microscope..to huge spheres ten feet or more in diameter. These rounded bodies are called spherulites when the constituents are arranged radially..and orbicules when these constituents are in concentric shells. 1939 W. H. Twenhofel Princ. Sedimentation xv. 570 Spherulites with radiate structure are evidently a form of crystal aggregate, whereas those with amorphous internal structure are either excremental particles or colloidal aggregates as glauconite, greenalite, or chamoisite. 1974 A. C. Tennissen Nature of Earth Materials v. 280 Spherulites have a radial type of internal structure. c. A small spheroidal mass of crystals or fibrils of any substance, esp. a polymer. ΘΚΠ the world > matter > chemistry > polymer chemistry > polymers (assoc. miscellaneous) > [noun] > spherulite spherulite1893 the world > matter > chemistry > crystallography (general) > crystal (general) > crystal habit > [noun] > miscellaneous others shoot1670 stella1844 hourglass structure1888 spherulite1893 lath1916 1893 Mineral. Mag. 10 97 (table) LiNaSO₄... Spherulitic... Some of the spherulites have a radial structure. 1911 Chem. Abstr. 5 1052 The author describes the peculiar structure of spherulites obtained in cholesterol and β-naphthalene benzoate. 1933 Bureau of Standards Jrnl. Res. (U.S.) 10 488 The microscopical examination of the crystals of rubber hydrocarbon indicates that they are spherulites composed of many fine needles. 1963 New Scientist 7 Nov. 334/1 Some polymers, like nylon and polystyrene are highly crystalline. They do not normally form single crystals, however, but produce so-called spherulites which are clusters of plate-like or needle-like individual crystals. 1975 Sci. Amer. Dec. 99/1 The spherulite, or ‘sunburst’ microstructure normally results from crystallization under quiescent conditions. 2. Palaeontology. (With capital initial.) A genus of fossil molluscs.In early use in Latin form Sphærulītēs. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Pelecypoda or Conchifera > [noun] > section Siphonida > integro-pallialia > family Hippuritidae > member of hippurite1798 spherulite1834 radiolite1835 rudist1855 rudistid1900 1834 E. Griffith et al. Cuvier's Animal Kingdom XII. 92 Sphærulites,..where the valves are roughened by irregularly raised plates. 1841 H. Miller Old Red Sandstone viii. 153 The hippurites, sphærulites, and nummulites of the same formations, in Greece, Italy, and Spain. 1847 D. T. Ansted Anc. World x. 241 One such genus is called Sphærulite... They seem most nearly allied to the inhabitants of those univalve shells of which the limpet is the present representative. This entry has not yet been fully updated (first published 1914; most recently modified version published online December 2020). < n.1823
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