Rock Identifier
Orange-yellow mineral fragment (possibly sulfur) (Unidentified; color suggests native sulfur (S), but the image is insufficient for confident identification) — mineral
mineral

Orange-yellow mineral fragment (possibly sulfur)

Unidentified; color suggests native sulfur (S), but the image is insufficient for confident identification

AI-generated identification · may be incorrect

Small, opaque-to-translucent orange-yellow fragment with an irregular shape and slight sheen. If sulfur, it has Mohs hardness 1.5–2.5, a resinous luster, and orthorhombic crystals.

Identified More mineral →
Explore Orange-yellow mineral fragment (possibly sulfur) in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

Physical properties

Small, opaque-to-translucent orange-yellow fragment with an irregular shape and slight sheen. If sulfur, it has Mohs hardness 1.5–2.5, a resinous luster, and orthorhombic crystals.

Formation & geological history

If native sulfur, it commonly forms near volcanic vents or through microbial processes in evaporite deposits; deposits range from recent to geologically ancient.

Uses & applications

Native sulfur is used to make sulfuric acid and fertilizers, and may be collected as a mineral specimen.

Geological facts

Color alone is not diagnostic; yellow-orange minerals and non-geological materials can look similar in this image.

Field identification & locations

Identification would require closer inspection and simple tests, such as hardness and streak; sulfur is found in volcanic regions and evaporite basins worldwide.