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单词 moss agate
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moss agate
moss agate n. a variety of agate in which inclusions, typically of manganese oxide, produce black, brown, or esp. greenish dendritic forms resembling moss.
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society > occupation and work > materials > raw material > gem or precious stone > rock crystal > [noun] > chalcedony > agate > varieties of
sea-agatea1593
phassachate1634
sardachate1706
jaspagate1748
peacock stone1753
moss agate1798
fortification-agate1882
the world > the earth > minerals > types of mineral > silicates > tectosilicate > [noun] > quartz > cryptocrystalline quartz > chalcedony > agate > varieties
sea-agatea1593
phassachate1634
sardachate1706
jaspagate1748
peacock stone1753
moss agate1798
ruin agate1798
1798 G. Mitchell tr. D. L. G. Karsten Descr. Minerals in Leskean Mus. I. 98 Milk white Moss Agate [Ger. Moosagat], traversed by brownish particles; from Ceylon.
1845 J. C. Atkinson in Hist. Berwickshire Naturalists' Club 2 No. 13. 132 Chert, hornstone, and moss agate, may be found.
1962 R. Webster Gems I. x. 178 In England and America the term mocha stone is used synonymously with moss agate, but in European countries the green moss agate alone is known as moss agate while the black and red coloured dendritic agate is termed mocha stone.
2000 Light Feb. 32/1 (caption) Pyramid lamps..are made with semi–precious stones including..moss agate and carnelian.
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