- microlite
[microlite 词源字典]
- " Mineralogy . Any of a subgroup of minerals of the pyrochlore group, found in various pegmatites, that are complex oxides of tantalum and niobium with sodium and calcium, often with small amounts of other elements such as uranium and titanium, crystallizing in the cubic system as yellow, brownish, or blackish translucent crystals", Mid 19th cent.; earliest use found in Charles Shepard (1804–1886). From micro- + -lite. In sense 1 so named from the smallness of the crystals in which it was first found.[microlite etymology, microlite origin, 英语词源]