Two structural metals at opposite ends of the density spectrum — chromium for stainless steel, magnesium for automotive lightweighting.
Chromium: Chromium is the defining element of stainless steel, essential to modern infrastructure, medical devices, and transportation. South Africa holds over 70% of global chromite reserves.
Magnesium: Magnesium is essential for automotive lightweighting to improve fuel efficiency and reduce emissions. China's 85% production dominance creates a severe strategic supply vulnerability.
Chromium: Chromium is a hard, lustrous metal essential for stainless steel production and chrome plating. It provides corrosion and heat resistance to steel alloys used in construction, transportation, and manufacturing. Magnesium: Magnesium is the lightest structural metal used commercially. It is used in automotive parts to reduce vehicle weight, in aluminum alloys, and in electronics casings. China dominates global magnesium production with approximately 85% of world output.
As tracked by Critical Minerals HQ, Chromium is currently $9,700 USD/t and Magnesium is $2,190 USD/t. The two minerals are quoted in different units (USD/t vs USD/t), so see the live price panels above for the most recent figures.
Neither is "better" in absolute terms — each is engineered for different end-uses. Chromium is primarily used for: Stainless steel production (10-30% chromium content), Chrome plating for automotive and industrial parts, Superalloys for high-temperature applications, Chemical pigments and dyes. Magnesium is primarily used for: Automotive lightweight structural components, Magnesium-aluminum alloy wheels and engine blocks, Electronics casings and laptop chassis, Aerospace structural components. The right mineral depends on the application.
Chromium and Magnesium are quoted in different units (USD/t vs USD/t), so a direct numeric rarity comparison from spot price alone is indicative only. See the indexed 25-year chart on the live page for relative scarcity behavior.
Specific US import-reliance percentages are not in our on-file reference text for either Chromium or Magnesium. See the official USGS Mineral Commodity Summaries for the latest figures.
Chromium top producers (USGS): South Africa, Kazakhstan, India, Turkey. Magnesium top producers: China, Russia, Israel, Kazakhstan. The mineral whose first-listed producer accounts for a larger share of global output carries the greater supply-chain concentration risk.
Chromium: Chromium is the defining element of stainless steel, essential to modern infrastructure, medical devices, and transportation. South Africa holds over 70% of global chromite reserves. Magnesium: Magnesium is essential for automotive lightweighting to improve fuel efficiency and reduce emissions. China's 85% production dominance creates a severe strategic supply vulnerability.