Question

magnet was first discovereed in which
place? What is the name of such rocks
which show magnetic properties​

Answer 1

Answer:

Roughly 4,000 years ago, a Greek shepherd named Magnes is said to have been tending his sheep in a region of northern Greece called Magnesia. He took a step and suddenly found that the nails that held his shoe together and the metal tip of his staff were stuck fast to the rock he was standing on!

The major rock-forming magnetic minerals are the following iron oxides: the titanomagnetite series, xFe2TiO4 · (1 - x)Fe3O4, where Fe3O4 is magnetite, the most magnetic mineral; the ilmenohematite series, yFeTiO3 · (1 - y)Fe2O3, where α-Fe2O3 (in its rhombohedral structure) is hematite; maghemite, γ-Fe2O3 (in