Rock Identifier
Snakeskin Agate (Agate (Cryptocrystalline Quartz, SiO2)) — mineral
mineral

Snakeskin Agate

Agate (Cryptocrystalline Quartz, SiO2)

Hardness: 6.5-7 (Mohs scale), Color: tan, yellow, white, and translucent, Luster: waxy to vitreous, Crystal structure: trigonal (microcrystalline), Cleavage: none (conchoidal fracture), Specific Gravity: 2.58-2.64

Hardness
6
Identified More mineral

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Physical properties

Hardness: 6.5-7 (Mohs scale), Color: tan, yellow, white, and translucent, Luster: waxy to vitreous, Crystal structure: trigonal (microcrystalline), Cleavage: none (conchoidal fracture), Specific Gravity: 2.58-2.64

Formation & geological history

Formed as secondary deposits in volcanic cavities or sedimentary nodules. This specific variety is often found in Rome, Oregon, in ancient lacustrine environments where silicates replaced older material, creating the scaly surface texture.

Uses & applications

Used primarily in lapidary arts for cabochons, jewelry making, and as a popular focus stone in crystal healing practices.

Geological facts

It is named for the unique scale-like pattern on its surface that resembles the skin of a snake. This texture is actually a natural weathering and crystallization pattern from silica-rich solutions.

Field identification & locations

Identify by its bumpy, cracked surface that looks like scales and its relative hardness (it won't scratch with a steel knife). Commonly found in the high deserts of Oregon, USA. Collectors look for pieces with distinct patterns and high transparency.