igneous concentration
91Switzerland — /swit seuhr leuhnd/, n. a republic in central Europe. 7,248,984; 15,944 sq. mi. (41,294 sq. km). Cap.: Bern. French, Suisse. German, Schweiz. Italian, Svizzera. Latin, Helvetia. * * * Switzerland Introduction Switzerland Background: Switzerland s …
92Wyoming — Wyomingite /wuy oh ming uyt /, n. /wuy oh ming/, n. 1. a state in the NW United States. 470,816; 97,914 sq. mi. (253,595 sq. km). Cap.: Cheyenne. Abbr.: WY (for use with zip code), Wyo., Wy. 2. a city in W Michigan, near Grand Rapids. 59,616. * * …
93iron processing — Introduction use of a smelting process to turn the ore into a form from which products can be fashioned. Included in this article also is a discussion of the mining of iron and of its preparation for smelting. Iron (Fe) is a… …
94Argon — This article pertains to the chemical element. For other uses, see Argon (disambiguation). Argon (pronEng|ˈɑrgɒn) is a chemical element designated by the symbol Ar. Argon has atomic number 18 and is the third element in group 18 of the periodic… …
95Calcium — (pronEng|ˈkælsiəm) is the chemical element with the symbol Ca and atomic number 20. It has an atomic mass of 40.078. Calcium is a soft grey alkaline earth metal, and is the fifth most abundant element by mass in the Earth s crust. Calcium is also …
96Hebrides — The Hebrides (PronEng|ˈhɛbrɨˌdiːz HEB ri deez , Gaelic: Innse Gall ) comprise a widespread and diverse archipelago off the west coast of Scotland. There are two main groups, the Inner and Outer Hebrides. These islands have a long history of… …
97Missouri — This article is about the U.S. state of Missouri. For the river, see Missouri River. For other uses, see Missouri (disambiguation). State of Missouri …
98Nature — This article is about the physical universe. For other uses, see Nature (disambiguation). Natural and Natural World redirect here. For other uses, see Natural (disambiguation). See also: Natural environment Hopetoun Falls, Australia …
99Carpathian Mountains — For other uses, see Carpathian (disambiguation). Carpathians Range Inner Western Carpathians, High Tatras, Poland …
100Chrysoberyl — General Category Oxide minerals Spinel group Chemical formula Be …
