mineral

Black-and-white spotted jasper (likely dalmatian jasper), polished beads

Commercially called Dalmatian jasper; typically a feldspar-rich rock with dark inclusions, not true jasper (microcrystalline quartz). Exact composition cannot be confirmed from the image.

AI-generated identification · may be incorrect

Polished, opaque gray-white beads with glossy black spots and patches. Hardness and crystal structure vary with composition; commonly about 6–7 Mohs if feldspar/quartz-rich.

Identified October 3, 2026More mineral →

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At a glance

Common name: Black-and-white spotted jasper (likely dalmatian jasper), polished beads
Scientific name: Commercially called Dalmatian jasper; typically a feldspar-rich rock with dark inclusions, not true jasper (microcrystalline quartz). Exact composition cannot be confirmed from the image.
Category: mineral
Identified: October 3, 2026
Method: Standard

AI Estimated Value

About $2–$15 for a small strand or set of common beads; finished jewelry varies.

Not an official valuation

AI estimate for general interest only — not an appraisal. Actual value depends on condition, provenance, and market demand. Verify with a professional before buying, selling, or insuring.

This identification was generated by AI and may contain errors. Verify important details before relying on them — and never use an AI result to judge whether a specimen is safe to handle. Read the full disclaimer

Physical properties

Polished, opaque gray-white beads with glossy black spots and patches. Hardness and crystal structure vary with composition; commonly about 6–7 Mohs if feldspar/quartz-rich.

Formation & geological history

A natural, silica- and feldspar-rich rock altered and patterned by mineral inclusions; the exact geological age and locality cannot be determined visually. The beads have been cut and polished.

Uses & applications

Used for jewelry, especially beads, pendants, and carvings, and as a decorative collectible.

Geological facts

“Dalmatian jasper” is a trade name; similar spotted material may be sold as jasper despite not being true jasper.

Field identification & locations

Recognize it by the contrasting dark inclusions in a pale matrix and the polished bead form; verify identity and locality with mineralogical testing or seller documentation.