Plan you week with the help of our 10-day weather forecasts and weekend weather predictions for Seward, AK
A mineral is a naturally occurring chemical compound, usually of crystalline form and abiogenic in origin (not produced by life processes). A mineral has one specific chemical composition, whereas a rock can be an aggregate of different minerals or mineraloids. The study of minerals is called mineralogy.
Chromium(III) oxide is the inorganic compound of the formula Cr 2 O 3.It is one of principal oxides of chromium and is used as a pigment. In nature, it occurs as the rare mineral eskolaite.hromium(III) oxide is amphoteric. Although insoluble in water, it dissolves in acid to produce hydrated chromium ions, [Cr(H 2 O) 6 ] 3+ which react with base to give salts of [Cr(OH) 6 ] 3â .