

Orpiment specimens for sale
10 for sale ยท $75โ$5,000 USD
145 in the gallery
Orpiment is a mineral composed of arsenic sulfide (As2S3) that forms typically in crystallized, yellow to orange-yellow masses. It commonly occurs as tabular or prismatic crystals with a vibrant, resinous to vitreous luster and a soft, brittle texture. The color ranges from diverse golden to honey-yellow hues, and its habit can include well-formed crystals and microcrystalline aggregates, often found in hydrothermal veins and volcanic environments.
- Formula
- As2S3
- Rarity
- Abundant
- Stability
- Stable
- Collector interest
- High Interest
- Classification notes
- Sulfides; arsenic sulfide minerals (Strunz 02.AB)
Key characteristics
- Crystal system
- monoclinic
- Mohs hardness
- 1.5โ2
- Specific gravity
- 3.49
- Luster
- resinous, pearly
- Transparency
- transparent, translucent
- Color
- yellow, orange, brown
- Streak
- yellow
- Cleavage
- perfect
- Fracture
- uneven
- Crystal habit
- prismatic, tabular, granular, massive
- Classic / historic
Buy Orpiment specimens
View all 10Where Orpiment is found
Top localities
- Quiruvilca Mine32 specimens
- Twin Creeks Mine23 specimens
- Shimen Mine15 specimens
- Palomo mines6 specimens
- Getchell Mine5 specimens
- Russia1 specimen
- Hunan1 specimen
- Kuran wa Munjan District1 specimen
- El'brusskiy Pb-Zn mine, Elbrussky, Karachayevsk City District1 specimen
Guides
All guides

Orpiment from Twin Creeks Mine, Nevada, USA
Orpiment Twin Creeks Mine, Nevada: iconic orange-to-honey yellow crystals with luster, rescued from mining, prized for color, translucency, and quality.Read guide
Orpiment from Shimen Mine, Hunan, China
Orpiment from Shimen Mine, Hunan; bright yellow to orange prismatic crystals with calcite and realgar, rare worldwide, a notable arsenic-sulfide classic.Read guide
Orpiment from Quiruvilca District, La Libertad, Peru
Orpiment โ Quiruvilca, Peru: vivid orange to honey-yellow As2S3 with translucent crystals and chisel terminations, a Peruvian locality prized by collectors.Read guideAbout Orpiment
Notable specimens originate from regions with historic mining and sulfur-rich geology, including locations in the United States, Peru, China, Russia, and North Macedonia. In such settings, Orpiment may be associated with realgar or other arsenic-bearing minerals, sometimes forming stunning crystal groups or reflective coatings that catch the eye of collectors. Localities with long mineralogical traditions frequently produce small to medium-sized crystals that display strong color and luster, making them sought after for display and study.
Collectors value Orpiment for its vivid color, contrast with darker minerals, and its reminder of arsenic sulfide chemistry. While less durable than harder minerals, well-preserved specimens with sharp crystal forms and clean faces offer striking visual appeal and educational insight into hydrothermal and volcanic mineral paragenesis.



















