jasperoidadj.n.

Etymology: < jasper n.¹ + -oid suffix.Previous versions of the OED give the stress as: ˈjasperoid.

A. adj.

Like jasper in appearance or structure.

ΘΚΠ

the world > matter > colour > variegation > [adjective]

fawa700

medleyc1350

freckledc1380

motleyc1380

pied1382

specked1382

vary1382

partyc1385

parted1393

peckleda1400

polymitec1425

sere-colouredc1425

vairc1425

discoloured?1440

motleyed1447

varying1488

sheld1507

fleckered1508

piet1508

mellay1515

particoloured1530

pickled1552

varied1578

mingled1580

partly coloured1582

chequered1592

medley-coloured1593

mingle-coloured1593

piebald1594

feathered1610

changeable1612

particolour1612

enamelled1613

variousa1618

pie-coloured1619

jaspered1620

gangean1623

versicolour1628

patchwork1634

damasked1648

variously-coloureda1660

variegateda1661

agated1665

varicoloured1665

damaska1674

various-coloureda1711

pieted1721

versicoloured1721

diversicoloured1756

mosaic1776

harlequin1779

spanged1788

calico1807

piety1811

varied-coloured1811

discolorate1826

heterochromous1842

jaspé1851

discolor1859

discolorous1860

jasperoid1876

damascened1879

heterochromatic1895

variotinted1903

batik1914

varihued1921

rumbled1930

damasky1931

pepper-and-salt1940

partihued1959

society > occupation and work > materials > raw material > gem or precious stone > rock crystal > [adjective] > jasper

jaspidean1794

jaspideous1804

jaspery1843

jasperous1851

jasperoid1876

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

jaspidean1794

jaspideous1804

jaspery1843

jasperous1851

jasperoid1876

1876 Forest & Stream 13 July 375/2 A piece of basaltic or jasperoid rock of suitable shape.

1965 G. J. Williams Econ. Geol. N.Z. xii. 176/1 The lode..lies immediately alongside and to the south-east of a belt of banded jasperoid chert.

B. n.

Geology. A rock in which silica, in the form of fine-grained quartz or chalcedony, has replaced some of the original constituents (usually the carbonate of limestone).

ΘΚΠ

the world > the earth > structure of the earth > constituent materials > rock > metamorphic rock > [noun] > other metamorphics

quartzite1823

mica-schist1826

amphibolite1833

hornfels1854

phthanite1854

hornblendite1874

psammite1882

tourmaline-rock1882

tourmaline-schist1882

jasperoid1898

skarn1901

metagabbro1904

metabasite1907

verdite1908

rodingite1911

siallite1933

tonstein1961

greenlandite1981

1898 J. E. Spurr in Monogr. U.S. Geol. Surv. XXXI. 219 He [sc. the writer] has become impressed with the widespread occurrence of this variety of quartz, which arises from the replacement of some original rock, ordinarily limestone or dolomite, by silica from circulating waters; and there seems to be need of some term which may specifically indicate it. For this use the word ‘jasperoid’ is suggested. Jasperoid may then be defined as a rock consisting essentially of cryptocrystalline, chalcedonic, or phenocrystalline silica, which has formed by the replacement of some other material, ordinarily calcite or dolomite.

1928 W. Lindgren Mineral Deposits (ed. 3) xiii. 207 Silicification of limestone, argillaceous shale and rhyolite is..a very common process taking place frequently with preservation of texture. The quartz will usually be fine-grained. Silicified limestones are called jasperoids.

1944 Proc. Prehistoric Soc. 10 12 The cherts and jasperoids probably came from the conglomerates at Bankrom.

1968 Prof. Papers U.S. Geol. Surv. No. 600 -B. 112/1 Sixty-eight samples of jasperoid associated with base- and precious-metal ore deposits in 25 western mining districts..were analysed for gold.

This entry has not yet been fully updated (first published 1900; most recently modified version published online June 2019).

单词	jasperoid
释义	jasperoidadj.n. Etymology: < jasper n.¹ + -oid suffix.Previous versions of the OED give the stress as: ˈjasperoid. A. adj. Like jasper in appearance or structure. ΘΚΠ the world > matter > colour > variegation > [adjective] fawa700 medleyc1350 freckledc1380 motleyc1380 pied1382 specked1382 vary1382 partyc1385 parted1393 peckleda1400 polymitec1425 sere-colouredc1425 vairc1425 discoloured?1440 motleyed1447 varying1488 sheld1507 fleckered1508 piet1508 mellay1515 particoloured1530 pickled1552 varied1578 mingled1580 partly coloured1582 chequered1592 medley-coloured1593 mingle-coloured1593 piebald1594 feathered1610 changeable1612 particolour1612 enamelled1613 variousa1618 pie-coloured1619 jaspered1620 gangean1623 versicolour1628 patchwork1634 damasked1648 variously-coloureda1660 variegateda1661 agated1665 varicoloured1665 damaska1674 various-coloureda1711 pieted1721 versicoloured1721 diversicoloured1756 mosaic1776 harlequin1779 spanged1788 calico1807 piety1811 varied-coloured1811 discolorate1826 heterochromous1842 jaspé1851 discolor1859 discolorous1860 jasperoid1876 damascened1879 heterochromatic1895 variotinted1903 batik1914 varihued1921 rumbled1930 damasky1931 pepper-and-salt1940 partihued1959 society > occupation and work > materials > raw material > gem or precious stone > rock crystal > [adjective] > jasper jaspidean1794 jaspideous1804 jaspery1843 jasperous1851 jasperoid1876 the world > the earth > minerals > types of mineral > silicates > tectosilicate > [adjective] > quartz > jasper jaspidean1794 jaspideous1804 jaspery1843 jasperous1851 jasperoid1876 1876 Forest & Stream 13 July 375/2 A piece of basaltic or jasperoid rock of suitable shape. 1965 G. J. Williams Econ. Geol. N.Z. xii. 176/1 The lode..lies immediately alongside and to the south-east of a belt of banded jasperoid chert. B. n. Geology. A rock in which silica, in the form of fine-grained quartz or chalcedony, has replaced some of the original constituents (usually the carbonate of limestone). ΘΚΠ the world > the earth > structure of the earth > constituent materials > rock > metamorphic rock > [noun] > other metamorphics quartzite1823 mica-schist1826 amphibolite1833 hornfels1854 phthanite1854 hornblendite1874 psammite1882 tourmaline-rock1882 tourmaline-schist1882 jasperoid1898 skarn1901 metagabbro1904 metabasite1907 verdite1908 rodingite1911 siallite1933 tonstein1961 greenlandite1981 1898 J. E. Spurr in Monogr. U.S. Geol. Surv. XXXI. 219 He [sc. the writer] has become impressed with the widespread occurrence of this variety of quartz, which arises from the replacement of some original rock, ordinarily limestone or dolomite, by silica from circulating waters; and there seems to be need of some term which may specifically indicate it. For this use the word ‘jasperoid’ is suggested. Jasperoid may then be defined as a rock consisting essentially of cryptocrystalline, chalcedonic, or phenocrystalline silica, which has formed by the replacement of some other material, ordinarily calcite or dolomite. 1928 W. Lindgren Mineral Deposits (ed. 3) xiii. 207 Silicification of limestone, argillaceous shale and rhyolite is..a very common process taking place frequently with preservation of texture. The quartz will usually be fine-grained. Silicified limestones are called jasperoids. 1944 Proc. Prehistoric Soc. 10 12 The cherts and jasperoids probably came from the conglomerates at Bankrom. 1968 Prof. Papers U.S. Geol. Surv. No. 600 -B. 112/1 Sixty-eight samples of jasperoid associated with base- and precious-metal ore deposits in 25 western mining districts..were analysed for gold. This entry has not yet been fully updated (first published 1900; most recently modified version published online June 2019). < adj.n.1876
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