Gypsum crystals. Form of gypsum known as a desert rose. Gypsum consists of hydrated calcium sulphate, and large deposits of this mineral form from the

---

Gypsum crystals. Form of gypsum known as a desert rose. Gypsum consists of hydrated calcium sulphate, and large deposits of this mineral form from the evaporation of highly saline waters. Under the right conditions, this ornate arrangement of crystals can form.

---

Size: 4295px × 4069px
Photo credit: © NATURAL HISTORY MUSEUM, LONDON/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: biological, biology, black, bladder, botanical, botany, close-, cystopteris, detail, diaphana, diaphanous, fern, flora, magnified, monochrome, nature, plant, reproduction, reproductive, sem, spore, surface, white