polished specimen
21jewelry — /jooh euhl ree/, n. 1. articles of gold, silver, precious stones, etc., for personal adornment. 2. any ornaments for personal adornment, as necklaces or cuff links, including those of base metals, glass, plastic, or the like. Also, esp. Brit.,… …
22Iron meteorite — Tamentit Iron Meteorite, found in 1864 in the Sahara Desert,[1] weight about 500 kg. On display at Vulcania park in France …
23List of Chinese inventions — A bronze Chinese crossbow mechanism with a buttplate (the wooden components have …
24Penny (United States coin) — Cent (Penny) United States Value 0.01 of a U.S. dollar Mass  2.5 g  (0.080 troy oz) Diameter  19.05 mm  (0.750 in) Thickness …
25literature — /lit euhr euh cheuhr, choor , li treuh /, n. 1. writings in which expression and form, in connection with ideas of permanent and universal interest, are characteristic or essential features, as poetry, novels, history, biography, and essays. 2.… …
26Rock microstructure — includes the texture of a rock and the small scale rock structures. The words texture and microstructure are interchangeable, with the latter preferred in modern geological literature. However, texture is still acceptable because it is a useful… …
27Electron backscatter diffraction — An electron backscatter diffraction pattern An electron backscatter diffraction pattern of monocrystalline silicon, taken …
28Dromornithidae — Dromornithids Temporal range: Oligocene Pleistocene, 25–0.03 Ma …
29Opal — For other uses, see Opal (disambiguation). Opal An opal bracelet. The stone size is 18 by 15 mm (0.7 by 0.6 in) General Category …
30Classical Latin — Latinitas Latin inscription in the Colosseum …
