Where is Polished Stone Bead found?

Polished Stone Bead occurs in specific geological environments. Knowing where to look, and in what kind of rock, is the difference between going home empty-handed and finding a great specimen.

Where to find Polished Stone Bead

Collecting tips

1. Examine Luster. A polished chalcedony bead will have a vitreous (glassy) to waxy luster. If it appears dull or earthy, it might be unpolished or a different material.
2. Check for Translucency. Agate and carnelian are typically translucent to semi-translucent, allowing some light to pass through, especially at thin edges. Jasper is generally opaque.
3. Observe Patterns. Look for characteristic banding (agate, onyx), orbicular patterns (orbicular jasper), dendritic inclusions (dendritic agate), or solid, uniform coloration (carnelian, some jaspers). These patterns are key to identifying the specific chalcedony variety.
4. Hardness Test (if appropriate). Chalcedony has a Mohs hardness of 6.5-7. It should scratch glass and not be easily scratched by a steel knife. This helps distinguish it from softer materials like plastic or some softer minerals, but should not be performed on a finished bead unless absolutely necessary for identification and without damaging the item.
5. Consider Specific Gravity. Chalcedony has a specific gravity of 2.58-2.64. While difficult to measure precisely for a small bead without specialized equipment, it can feel heavier than plastic imitations of similar size.

Quick Check

Color:

Highly variable (red, brown, green, yellow, blue, white, black, multi-colored)

Luster:

Vitreous to waxy (polished)

Streak:

White

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