Hematite

It is also found in large quantities on Mars, whose particular colour is in fact due to this shiny stone. 

Its shade of red, so strong and decisive that it is used as a pigment, combined with its unique lustre (a refractive index higher even than that of Diamond) make haematite virtually unmistakable. 

Its strong colouring creates an exceptional vibration that helps to establish a more intense contact with ourselves, making this stone suitable for a path of spiritual growth.