The price of crude materials in the Producer Price Index (PPI) increased by 3.3% in January alone and now stands 21% above where it was just six months ago.

FORBES: Higher Inflation Is On The Way

It depends on imports of crude oil, grains, raw materials, and military equipment.

FORBES: Israel

Others use the materials in the world to make crude blocky machines and devices.

BBC: Minecraft fans gather for Minecon in Paris

Weighing on the downside were materials and energy stocks, as crude-oil prices slipped.

WSJ: U.S. Stocks Rally to Fresh Highs

Weighing on the downside Tuesday were materials and energy stocks, as prices for crude oil and metals slipped.

WSJ: U.S. Stocks Rally to Fresh Highs