Guide
Realgar specimens for sale
25 for sale · $110–$4,500 USD
56 in the gallery
Realgar is a arsenic sulfide mineral that forms vibrant orange to reddish-orange crystals. It often occurs as well-formed prismatic crystals and aggregates with a resinous to vitreous lustre, sometimes showing octahedral or tabular habits. The color is its defining feature, hanging in tones from bright orange to deep rust, and it commonly crystallizes in the monoclinic system, with crystals that can be sharp and striking under proper lighting.
- Formula
- As4S4
- Rarity
- Common
- Stability
- Unstable
- Collector interest
- Moderate Interest
Buy Realgar specimens
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About Realgar
Notable specimens come from Chinese localities where large, well-formed crystals have been recovered, as well as from historic mining regions in Romania, the United States, Switzerland, and Peru. Realgar is frequently found within hydrothermal veins and volcanic-related deposits, occasionally associated with orpiment. Some specimens exhibit a satin to vitreous surface sheen that enhances their visual warmth when displayed in collections.
Collectors seek Realgar for its bold color contrast and crystal forms, as well as for historical significance in mineral cabinets. Care is required in handling, as Realgar contains arsenic and can alter to orpiment with light exposure; proper storage away from prolonged light helps preserve its appearance for display.
