The rectangle is about 26mm long and 15mm wide. Thickness approx. 5,6mm. The inner dimension of the loop is approx. 4,9mm. Width of the loop approx. 3,9mm. Total length pendant approx. 32.5mm
Banded hematite / bloodstone ore, BIF; banded iron formation
It is said that during the evolution of the earth, divalent iron in contact with oxygen was transformed into trivalent and precipitated / deposited into hematite (iron ore)
The banding consists of hematite and quartz deposits. When the miners started drilling out the hematite with water, the water turned red, hence the name bloodstone in Sweden.