gypsum - unusual sand selenite from a dry lake near Ica, Ica Province, southern Peru - hand specimen The quarry is inactive

The quarry is inactive

This genus was erected by Jacob Hübner in 1819

and various shades of yellow

It's unlikely they will have seen sand with garnet in it

Peru and the Alps were the only sources of pink fluorite at astronomical prices

gypsum - unusual sand selenite from a dry lake near Ica, Ica Province, southern Peru - hand specimen The quarry is inactiveSelenite gypsum sand rose CaSO4 2H2O Selenite gypsum sand "roses" form in seasonal desert lakes as they dry. Selenite is typically transparent, but when it crystallizes in sandy conditions it forms rosettes of flattened crystals, the rose petals, which are either encrusted with sand or with sand embedded throughout. The color of the gypsum crystals depends on the color of the sand in that dry lake. These Peruvian examples were recently discovered and