spessartiten.
/ˈspɛsətʌɪt/ 1. Mineralogy. = spessartine n. Chiefly North American.
ΘΚΠ
society > occupation and work > materials > raw material > gem or precious stone > garnet > [noun] > varieties of
carbuncle stonec1300
alabandinec1400
rock ruby1544
ruby rock1562
almandine1601
rocky ruby1694
pyrope garnet1804
alamandine1805
cinnamon-stone1805
colophonite1808
carbuncle1816
grossular1819
topazolite1819
hessonite1820
uvarovite1837
spessartine1850
almandite1854
andradite1868
spessartite1868
vermeil1884
the world > the earth > minerals > types of mineral > silicates > nesosilicates > [noun] > garnet > spessartite
spessartine1850
spessartite1868
spandite1907
1868 J. D. Dana Syst. Mineral. (ed. 5) 268 Manganese-Aluminagarnet; Spessartite.
1910 Encycl. Brit. XI. 471/1 Spessartite, or spessartine,..is a fine aurora-red garnet, cut for jewelry when sufficiently clear.
1934 G. L. English Getting acquainted with Minerals ii. 228 Some of the fine garnets of Delaware County, Pennsylvania are spessartite.
1953 F. H. Pough Field Guide Rocks & Minerals ii. 296 Spessartite is less common and not often properly identified when it is in a schist.
1971 R. Purvis Treasure Hunting in Brit. Columbia i. 21/2 Spessartite is pink to dark brown.
2. Geology. [ < German spessartit (H. Rosenbusch Mikrosk. Physiogr. (ed. 3) (1896) II. 529).] A porphyritic lamprophyre in which the feldspar is sodic plagioclase and the phenocrysts consist of an amphibole or pyroxene, usually green hornblende.
ΘΚΠ
the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [noun] > porphyrite rock > varieties of
red rock1721
oriental verd-antique1852
kersanton1862
kersantite1868
uralite-porphyry1868
monchiquite1891
vogesite1891
camptonite1895
hedrumite1896
wyomingite1897
spessartite1908
rhyodacite1913
rhyolite1932
1908 P. MacNair Geol. & Scenery of Grampians II. x. 64 Dykes and sills of lamprophyre, including kersantites, vogesites, and spessartites, are..to be met with throughout the Highlands.
1930 B. N. Peach & J. Horne Chapters Geol. Scotl. iv. 108 The dark basic sills in the dolomites of the Assynt region..include representations of vogesites and spessartites.
1966 Jrnl. & Proc. Royal Soc. New S. Wales 99 38/1 Many of the common lamprophyres, such as minettes, vogesites, kersantites and spessartites are almost chemically identical.
1970 Jrnl. Geol. (Chicago) 78 742/1 The dikelets probably formed during later stages of crystallization of the spessartite.
This entry has not yet been fully updated (first published 1986; most recently modified version published online March 2022).
<
n.1868