† philadelphiten.

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

Etymology: < the name of Philadelphia (see Philadelphia n.), near which it was discovered + -ite suffix¹. N.E.D. (1905) gives the pronunciation as (filăde·lfəit) /fɪləˈdɛlfʌɪt/.

Mineralogy. Obsolete.

A clay mineral now regarded as a variety of hydrobiotite.

ΘΚΠ

the world > the earth > minerals > types of mineral > silicates > phyllosilicate > [noun] > vermiculite(s) > varieties

jefferisite1866

kerrite1873

protovermiculite1877

philadelphite1881

1881 H. C. Lewis in Proc. Acad. Nat. Sci. Philadelphia 1880 313 The mineral here described as Philadelphite belongs to the vermiculite group of hydrous silicates.

1882 Amer. Naturalist 16 164 In many of its characters it [sc. vermiculite] is similar to the variety known as Philadelphite.

This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2019).

单词	philadelphite
释义	† philadelphiten. Origin: From a proper name, combined with an English element. Etymons: proper name Philadelphia , -ite suffix¹. Etymology: < the name of Philadelphia (see Philadelphia n.), near which it was discovered + -ite suffix¹. N.E.D. (1905) gives the pronunciation as (filăde·lfəit) /fɪləˈdɛlfʌɪt/. Mineralogy. Obsolete. A clay mineral now regarded as a variety of hydrobiotite. ΘΚΠ the world > the earth > minerals > types of mineral > silicates > phyllosilicate > [noun] > vermiculite(s) > varieties jefferisite1866 kerrite1873 protovermiculite1877 philadelphite1881 1881 H. C. Lewis in Proc. Acad. Nat. Sci. Philadelphia 1880 313 The mineral here described as Philadelphite belongs to the vermiculite group of hydrous silicates. 1882 Amer. Naturalist 16 164 In many of its characters it [sc. vermiculite] is similar to the variety known as Philadelphite. This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2019). < n.1881
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