piedmontiten.

Brit.

/ˈpiːdmɒntʌɪt/, U.S.

/ˈpidˌmɑnˌtaɪt/

Origin: A variant or alteration of another lexical item. Etymon: German Piemontit.

Etymology: Alteration (by J. D. Dana) of German Piemontit piemontite n., after Piedmont, the name in English of Piemonte (see piedmont n. and adj.); compare -ite suffix¹. N.E.D.(1906) also gives the pronunciation (pyē·dmǫntəit) /ˈpjeːdmɒntaɪt/.

Mineralogy.

= piemontite n.

ΘΚΠ

the world > the earth > minerals > types of mineral > silicates > epidote group > [noun] > piedmontite

piedmontite1854

piemontite1892

1854 J. D. Dana Min. (ed. 4) II. Index 528/2 Piedmontite.

1872 T. Egleston Lect. Mineral. 41 The violet variety of Epidote called Piedmontite is only found in mines of manganese associated with other minerals of this metal.

1933 Mineral. Mag. 23 417 The pleochroic colours shown by the mineral in thin section closely resemble those of piedmontite from Japan and from South Mountain, Pennsylvania.

1971 Mineral. Mag. 38 104 Recommendations of the Commission [on New Minerals and Mineral Names of the International Mineralogical Association] on minerals for which more than one name is in common use... Piemontite, not piedmontite.

2000 Current Res. 10 Hazel Ridge..reveals folded mafic metavolcanic rock, piedmontite chert, and marble.

This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).

单词	piedmontite
释义	piedmontiten. Brit. /ˈpiːdmɒntʌɪt/, U.S. /ˈpidˌmɑnˌtaɪt/ Origin: A variant or alteration of another lexical item. Etymon: German Piemontit. Etymology: Alteration (by J. D. Dana) of German Piemontit piemontite n., after Piedmont, the name in English of Piemonte (see piedmont n. and adj.); compare -ite suffix¹. N.E.D.(1906) also gives the pronunciation (pyē·dmǫntəit) /ˈpjeːdmɒntaɪt/. Mineralogy. = piemontite n. ΘΚΠ the world > the earth > minerals > types of mineral > silicates > epidote group > [noun] > piedmontite piedmontite1854 piemontite1892 1854 J. D. Dana Min. (ed. 4) II. Index 528/2 Piedmontite. 1872 T. Egleston Lect. Mineral. 41 The violet variety of Epidote called Piedmontite is only found in mines of manganese associated with other minerals of this metal. 1933 Mineral. Mag. 23 417 The pleochroic colours shown by the mineral in thin section closely resemble those of piedmontite from Japan and from South Mountain, Pennsylvania. 1971 Mineral. Mag. 38 104 Recommendations of the Commission [on New Minerals and Mineral Names of the International Mineralogical Association] on minerals for which more than one name is in common use... Piemontite, not piedmontite. 2000 Current Res. 10 Hazel Ridge..reveals folded mafic metavolcanic rock, piedmontite chert, and marble. This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022). < n.1854
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