piniten.1
/ˈpʌɪnʌɪt/, /ˈpɪnʌɪt/, U.S. /ˈpaɪˌnaɪt/, /ˈpɪˌnaɪt/ Mineralogy.
A grey-green or brownish mica formed as a pseudomorph by the alteration of other minerals such as spodumene or cordierite.
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the world > the earth > minerals > types of mineral > silicates > phyllosilicate > [noun] > mica > pinite
pinite1805
gieseckite1821
gigantolite1835
neurolite1836
polyargite1844
parophite1852
liebenerite1865
oosite1868
1805 R. Jameson Syst. Mineral. II. 552 Pinite..occurs seldom massive.
1865 D. Page Handbk. Geol. Terms (ed. 2) 360 Pinite, a variety or sub-species of iolite.
1895 A. Harker Petrol. ii. 28 Other unusual minerals are cordierite, usually pseudomorphed by the micaceous substance termed pinite, and andalusite.
1993 A. M. Clark Hey's Mineral Index (ed. 3) 548/1 Pinite, a group of pseudomorphs, mostly of mica after cordierite, nepheline, or scapolite.
This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022).
piniten.2
/ˈpʌɪnʌɪt/, U.S. /ˈpaɪˌnaɪt/ Chemistry.
A sweet-tasting carbohydrate, C7H14O6, that is a methyl derivative of inositol occurring in the sap of the sugar pine, Pinus lambertiana.
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the world > matter > chemistry > organic chemistry > carbohydrates > sugars > monosaccharides > [noun] > by number of carbon atoms > having 6 carbon atoms > glucose (specific) > pinite
pinite1856
1856 Amer. Jrnl. Sci. 72 8 This chemist describes the body in question under the name of Pinite. He relates that it is yielded by the Pinus lambertiana of California.
1926 A. W. Schorger Chem. of Cellulose & Wood ii. 59 Strupp has recently elaborated a derivation of lignin from the cyclic sugars, such as pinite and inosite.
1998 Tree Physiol. 18 325 Soil acidification and liming had no effect on the annual mean concentrations of fructose, glucose, lactose, pinite, raffinose and stachyose.
This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022).
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