fine-crushed ore

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• fine — fine1 /fuyn/, adj., finer, finest, adv., v., fined, fining, n. adj. 1. of superior or best quality; of high or highest grade: fine wine. 2. choice, excellent, or admirable: a fine painting. 3. consisting of minute part …   Universalium

• Iron ore — Iron ores are rocks and minerals from which metallic iron can be economically extracted. The ores are usually rich in iron oxides and vary in colour from dark grey, bright yellow, deep purple, to rusty red. The iron itself is usually found in the …   Wikipedia

• Dartmoor tin-mining — The wheelpit at Huntingdon mine The Dartmoor tin mining industry is thought to have originated in pre Roman times,[1] and continued right through to the 20th century. From the 12th century onwards tin mining was regulated by a Stannary Parliament …   Wikipedia

• iron 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… …   Universalium

• Derbyshire lead mining history — Goodluck Mine in Via Gellia. This article details some of the history of lead mining in Derbyshire, England. Contents 1 …   Wikipedia

• lead processing — Introduction       preparation of the ore for use in various products.       Lead (Pb) is one of the oldest metals known, being one of seven metals used in the ancient world (the others are gold, silver, copper, iron, tin, and mercury). Its low… …   Universalium

• Stamp mill — Section of Quincy Mine unit operations diagram showing Allis Steam Stamp Mill A stamp mill (or stamp battery or stamping mill) is a type of mill machine that crushes material by pounding rather than grinding, either for further processing or for… …   Wikipedia

• Santa María School massacre — The Santa María school, circa 1907. The Santa María School massacre was a massacre of striking workers, mostly saltpeter (nitrate) miners, along with wives and children, committed by the Chilean Army in Iquique, Chile on December 21, 1907. The… …   Wikipedia

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• Sweden — • The largest of the three Scandinavian countries and the eastern half of the Scandinavian peninsula Catholic Encyclopedia. Kevin Knight. 2006. Sweden     Sweden      …   Catholic encyclopedia

• Roman technology — is the engineering practice which supported Roman civilization and made the expansion of Roman commerce and Roman military possible over nearly a thousand years. The Roman Empire had the most advanced set of technology of their time, some of… …   Wikipedia