pennantiten.

Brit.

/ˈpɛnəntʌɪt/, U.S.

/ˈpɛnənˌtaɪt/

Origin: From a proper name, combined with an English element. Etymons: proper name Pennant , -ite suffix¹.

Etymology: < the name of Thomas Pennant (1726–98), Welsh zoologist and mineralogist + -ite suffix¹ (see quots. 1946¹, 1946²).

Mineralogy.

A mineral of the monoclinic crystal system which consists of a hydroxide and aluminosilicate of manganese, and occurs as minute orange-red pleochroic flakes.

ΘΚΠ

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

sarcolite1814

allophane1817

gmelinite1825

levyne1825

schrötterite1844

levynite1868

maskelynite1875

steatoid1877

griqualandite1887

tiger-eye1891

pennantite1946

tacharanite1961

1946 W. C. Smith et al. in Mineral. Mag. 27 217 (heading) Pennantite, a new manganese-rich chlorite from Benallt mine, Rhiw, Carnarvonshire.

1946 W. C. Smith et al. in Mineral. Mag. 27 220 The names manganchlorite (Hamberg) and manganese-chlorite (Eckermann) have been applied to chlorites containing only a low percentage..MnO, so it is desirable to avoid the use of either of these names for a chlorite so rich in manganese as the mineral here described, and we therefore propose for it a new name, pennantite.

1954 Mineral. Mag. 30 280 The manganese-bearing chlorites include the remarkable species pennantite, chemically a klementite with the magnesium almost wholly replaced by manganese.

1970 Mineral Abstr. 21 249/2 Magnesium pennantite in the Zhumast deposit occurs in marbles and in carbonate layers in braunite ore.

1997 Proc. National Acad. Sci. U.S.A. 94 12266/2 Birnessite..and pennantite (not shown) contain sheets, rather than chains, of octahedrally coordinated Mn.

This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022).

单词	pennantite
释义	pennantiten. Brit. /ˈpɛnəntʌɪt/, U.S. /ˈpɛnənˌtaɪt/ Origin: From a proper name, combined with an English element. Etymons: proper name Pennant , -ite suffix¹. Etymology: < the name of Thomas Pennant (1726–98), Welsh zoologist and mineralogist + -ite suffix¹ (see quots. 1946¹, 1946²). Mineralogy. A mineral of the monoclinic crystal system which consists of a hydroxide and aluminosilicate of manganese, and occurs as minute orange-red pleochroic flakes. ΘΚΠ the world > the earth > minerals > types of mineral > silicates > tectosilicate > [noun] > other tektosilicates sarcolite1814 allophane1817 gmelinite1825 levyne1825 schrötterite1844 levynite1868 maskelynite1875 steatoid1877 griqualandite1887 tiger-eye1891 pennantite1946 tacharanite1961 1946 W. C. Smith et al. in Mineral. Mag. 27 217 (heading) Pennantite, a new manganese-rich chlorite from Benallt mine, Rhiw, Carnarvonshire. 1946 W. C. Smith et al. in Mineral. Mag. 27 220 The names manganchlorite (Hamberg) and manganese-chlorite (Eckermann) have been applied to chlorites containing only a low percentage..MnO, so it is desirable to avoid the use of either of these names for a chlorite so rich in manganese as the mineral here described, and we therefore propose for it a new name, pennantite. 1954 Mineral. Mag. 30 280 The manganese-bearing chlorites include the remarkable species pennantite, chemically a klementite with the magnesium almost wholly replaced by manganese. 1970 Mineral Abstr. 21 249/2 Magnesium pennantite in the Zhumast deposit occurs in marbles and in carbonate layers in braunite ore. 1997 Proc. National Acad. Sci. U.S.A. 94 12266/2 Birnessite..and pennantite (not shown) contain sheets, rather than chains, of octahedrally coordinated Mn. This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022). < n.1946
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