🌸 -10% discount as a welcome offer from 50€ of purchase (cumulative with promotions) + discounts offered to professionals and for group purchases, contact us to find out more!
📐 Dimensions: 80 millimeters long x 50 wide x 30 high
⚖️ Weight: 40 grams
✨ Finish: Polished
🔬 Treatment: None
📜 Certificate: Certified by Gem and Zen
🎁 Ideal for giving as a gift or treating yourself!
👉 Known since ancient times, orpiment was sought after as a precious but dangerous pigment. Alchemists saw it as a "sunstone" and attempted to discover a secret of transmutation.
📜Mineralogical sheet:
Characteristic
Description
Common noun
Orpiment
Scientific name
Orpiment (sulfur arsenite)
Chemical formula
As₂S₃
Family
Sulfides (subgroup of arsenic sulfides)
Color
Lemon yellow to orange, sometimes golden
Transparency
Transparent to translucent
Glow
Resinous to pearly
Crystal system
Monoclinic
Crystal habitus
Lamellar, foliated masses, sometimes in tabular crystalline aggregates
Hardness (Mohs)
1.5–2 (very soft mineral)
Density
3.4–3.5 g/cm³
Cleavage
Perfect (lamellar)
Break
Uneven to splintery
Geological origin
Low-temperature hydrothermal mineral, often associated with realgar, stibnite, or quartz
Known deposits
China, Peru, Romania, Türkiye, United States, France (rare)
Special properties
Highly toxic (arsenic); formerly used as a yellow pigment (orpimentum); light-sensitive (degrades)
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