Sulfur
Image: <a href="//commons.wikimedia.org/w/index.php?title=User:AlexmarPhoto&action=edit&redlink=1" class="new" title="User:AlexmarPhoto (page does not exist)">AlexmarPhoto</a> (CC BY 4.0)
Description
This image shows microscopic sulfur crystals growing from a melt, displaying intricate, feathery, and layered patterns in golden yellow, orange, and dark blue/grey hues under polarized light. In its natural state, sulfur typically forms bright yellow, often pyramidal or tabular crystals, or massive aggregates.
Geological Context
Sulfur forms in various geological settings, including volcanic fumaroles and solfataras as a sublimation product, and in evaporite deposits where it results from the bacterial reduction of sulfate minerals. It can also be found in hydrothermal veins and as an alteration product of sulfide minerals.
