7.1K views · 131 reactions | Gypsum crystals comprise the White Sands DesertUnlike silica sand, gypsum doesn’t absorb heat from the sun. So even on the hottest day of the year, the dunes are cool and comfortable to walk on Just bring lots of water! From @idoubledogdareya | Dogs In The World | Facebook

293K views · 21K reactions | This cluster of fish-tailed gypsum crystals comes from the Red River Floodway in Manitoba, Canada. Unusually large specimen for this find! | The Arkenstone Gallery of Fine Minerals | Facebook