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单词 gamsigradite
释义

gamsigraditen.

Brit. /ˈɡamsᵻˌɡradʌɪt/, U.S. /ˈɡæmsəˌɡrædaɪt/
Origin: A borrowing from German. Etymon: German Gamsigradit.
Etymology: < German Gamsigradit (A. Breithaupt 1861, in Berg- u. Hüttenmännische Zeitung 20 53/1) < Gamsigrad , variant form of Gamzigrad , the name of a town (now Gamzigradska Banja ) and archaeological site in Serbia where the mineral was discovered + -it -ite suffix1, with remodelling of the ending after -ite suffix1.
Mineralogy. Now rare or disused.
A velvet-black manganese-containing mineral (now regarded as a variety of hornblende).
ΘΚΠ
the world > the earth > minerals > types of mineral > silicates > amphibole (double chain) > [noun] > other
uralite1835
gamsigradite1862
palygorskite1868
richterite1868
barkevikite1892
xiphonite1899
narsarsukite1900
winchite1906
juddite1908
imerinite1913
tirodite1938
1862 Amer. Jrnl. Sci. 84 213 Breithaupt has given the name gamsigradite to a black hornblende, from Gamsigrad, in Servia.
1868 J. D. Dana Syst. Mineral. (ed. 5) 238 Gamsigradite; Aluminous Iron-Manganese Amphibole.
1899 Proc. Amer. Acad. Arts & Sci. 34 398 Pargasite, carinthine, gamsigradite, syntagmatite, and barkevikite..give figures that are equivalent with those just described for basaltic hornblende.
1935 C. Palache Minerals Franklin & Sterling Hill 70 Hastingsite (gamsigradite).
This entry has been updated (OED Third Edition, March 2013; most recently modified version published online March 2022).
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n.1862
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