Source of the photo
http://www.chem.elte.hu/departments/altkem/tarczay/szervetlen/FT_szervetlen6_2009.pdf
Author of the description
Gruiz Katalin
The map shows the chromium production all over the World.
Chromium is used for the production of chromium containing chemical substances, such as:
Cr: as alloying component (chromesteel)
CrO2: coating on magnetic bands
Cr2O3: polish
PbCrO4: paint
K2CrO4 (potassium-chromate), K2Cr2O7(potassium-bichromate): oxidizers
CrO3: strong oxidizer
Source of description