ekdemiten.

/ˈɛkdɪmʌɪt/

/ɛkˈdiːmʌɪt/

Forms: Also ecdemite.

Etymology: < Swedish ekdemit (A. E. Nordenskiöld 1877, in Geol. För. Förh. III. 379), < Greek ἔκδημος unusual + -ite suffix¹.

Mineralogy.

A yellow oxychloride of lead and arsenic, of uncertain formula, found in Sweden and the U.S.A.

ΚΠ

1879 Jrnl. Chem. Soc. 36 22 Ekdemite.., a new mineral, coarse-crystalline, foliated, monoaxial, with a distinct basal cleavage.

1882 J. D. Dana Man. Mineral. (ed. 4) 152 Ecdemite, a lead chloro-arsenite.

1951 C. Palache et al. Dana's Syst. Mineral. (ed. 7) II. 1036 Found as crystals and masses associated with heliophyllite in manganoan calcite at Långban, Wermland, Sweden. Ecdemite apparently also constitutes the uniaxial parts of the intergrowths with heliophyllite found..in Wermland.

1968 I. Kostov Mineral. 467 Ekdemite is tetragonal, dimorphous with heliophyllite.

This entry has not yet been fully updated (first published 1972; most recently modified version published online December 2020).

单词	ekdemite
释义	ekdemiten. /ˈɛkdɪmʌɪt//ɛkˈdiːmʌɪt/ Forms: Also ecdemite. Etymology: < Swedish ekdemit (A. E. Nordenskiöld 1877, in Geol. För. Förh. III. 379), < Greek ἔκδημος unusual + -ite suffix¹. Mineralogy. A yellow oxychloride of lead and arsenic, of uncertain formula, found in Sweden and the U.S.A. ΚΠ 1879 Jrnl. Chem. Soc. 36 22 Ekdemite.., a new mineral, coarse-crystalline, foliated, monoaxial, with a distinct basal cleavage. 1882 J. D. Dana Man. Mineral. (ed. 4) 152 Ecdemite, a lead chloro-arsenite. 1951 C. Palache et al. Dana's Syst. Mineral. (ed. 7) II. 1036 Found as crystals and masses associated with heliophyllite in manganoan calcite at Långban, Wermland, Sweden. Ecdemite apparently also constitutes the uniaxial parts of the intergrowths with heliophyllite found..in Wermland. 1968 I. Kostov Mineral. 467 Ekdemite is tetragonal, dimorphous with heliophyllite. This entry has not yet been fully updated (first published 1972; most recently modified version published online December 2020). < n.1879
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