Description
Snakeskin Agate Mineral from Wyoming, USA
This listing presents a fine example of Snakeskin Agate, a unique and highly distinctive mineral specimen sourced from Wyoming, USA. Known for its intricate surface textures and unusual crackled patterns that resemble the scales of a snake, Snakeskin Agate is a captivating gemstone sought after by collectors, lapidarists, and those who appreciate natural mineral artistry. Each specimen is carefully chosen for its aesthetic qualities and supplied with a Certificate of Authenticity, guaranteeing that it is 100% genuine.
Geological Formation of Snakeskin Agate
Snakeskin Agate is a variety of chalcedony, a microcrystalline form of quartz composed of silica (SiO₂). It is formed through the slow deposition of silica-rich solutions within volcanic rock cavities and fissures. Over millions of years, these solutions crystallise to produce layers of chalcedony interspersed with subtle impurities that create its characteristic snakeskin effect.
The stone’s distinctive cracked, scale-like appearance is not a true external texture but rather a natural internal patterning of the chalcedony layers. These features are enhanced by weathering and polishing, producing a gemstone with both earthy tones and striking surface detail. Wyoming is one of the best-known localities for Snakeskin Agate, producing specimens with exceptional clarity and pattern.
Morphology and Distinguishing Features
Snakeskin Agate is recognised for the following characteristics:
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Patterning: A distinctive cracked, scaly appearance reminiscent of reptile skin.
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Colouration: Typically earthy shades of tan, cream, brown, and grey, often with translucent layers of chalcedony.
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Texture: Naturally smooth when polished, with a glossy finish highlighting the patterning.
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Hardness: 6.5–7 on the Mohs scale, providing durability for cutting, polishing, and display.
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Crystal System: Trigonal, reflecting its identity as a chalcedony quartz.
Geological and Collector Significance
As a chalcedony variety, Snakeskin Agate belongs to the quartz family, one of the most abundant and scientifically significant mineral groups. Its unique appearance makes it particularly valuable among agates, which are already prized for their diversity of banding, colours, and textures. Collectors favour Wyoming specimens for their clarity and striking reptilian markings, making them highly desirable additions to any mineral or gemstone collection.
Lapidarists and artisans also prize Snakeskin Agate for its durability and attractive surface, which takes a high polish. It is often used in jewellery, cabochons, and ornamental carvings. In metaphysical traditions, Snakeskin Agate is associated with protection, transformation, and adaptability, qualities linked to its reptilian resemblance.
Collector’s Details
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Mineral Type: Snakeskin Agate (Chalcedony Quartz)
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Chemical Formula: SiO₂
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Crystal System: Trigonal
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Hardness: 6.5–7 Mohs
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Locality: Wyoming, USA
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Appearance: Cream, brown, and grey with scale-like surface patterns
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Condition: Natural, polished mineral specimen
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Scale: 1cm cube in photographs for accurate sizing reference
Authenticity and Presentation
Every specimen offered is 100% genuine, carefully selected for its quality and distinctive patterning. Each is supplied with a Certificate of Authenticity, guaranteeing its natural origin. The photographs provided show an example of the type of Snakeskin Agate you will receive, with every piece displaying unique variations in colour and surface detail.
This Snakeskin Agate mineral from Wyoming, USA is both a geological curiosity and a decorative treasure. Its distinctive reptilian patterns and strong geological pedigree make it a remarkable addition for collectors, crystal enthusiasts, and anyone with an appreciation for Earth’s natural artistry.





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