Italy's Valpolicella wine route: top 10 guide. 1  Verona's vineyards, once renowned for churning out basic pizzeria plonk, are now producing some of the country's finest reds. From tastings over home-cooked pasta to stays in an 'agriturismo', here are our key picks for a tasty tour of the region.
bauxite is the color of like dark greenish-blackish.
Bauxite, the main ore of aluminum, contains about 50-60% alumina (aluminum oxide, Al 2 O 3) and is formed by the weathering of aluminum-rich rocks under tropical conditions. Aluminum is produced by separating pure alumina from bauxite in a refinery, then treating the alumina by electrolysis.