Abu-Abdullah Boabdil was the last Moorish king of Granada. He gained the throne in 1481 by expelling his father, Mulei Hassan; and became the vassal of Ferdinand of Aragon. By his tyranny he provoked the hostility of his own subjects, and Ferdinand, taking advantage of the dissensions which prevailed, laid siege to Granada. The Moors made a valiant defence, but Boabdil capitulated, and retired to a domain of the Alpujarras assigned him by the victor. He afterwards passed into Africa, and fell in battle while assisting the King of Fes in an attempt to dethrone the King of Morocco. Research Boabdil
Pyrrhotite is a magnetic common mineral often found in igneous rocks, and confirmed as a distinct species of mineral in 1835. It is an iron sulphide with the formulae FeS and a relative hardness of 5. It is mined for the nickel minerals associated with it. Research Pyrrhotite
Troilite, named after Dominico Troili, an Italian of the 18th century, is a native iron protosulphide, FeS. It is known only in meteoric irons, and is usually found in imbedded nodular masses of a bronze colour. Research Troilite
Abbreviations
Research Boabdil
