mineral

Gemstone Sand (Mineral Assortment)

Mixed Mineral Concentrates (Commonly including Quartz SiO2, Garnet X3Y2(SiO4)3, and Tourmaline (Na,Ca)(Li,Mg,Al)3(Al,Fe,Mn)6(BO3)3(Si6O18)(OH,F)4)

AI-generated identification · may be incorrect

Hardness: Varied (typically 6.5-7.5 Mohs); Color: Multi-colored (pink, green, amber, clear); Luster: Vitreous (glassy); Structure: Varied (Hexagonal, Trigonal, Isometric); Cleavage: Mostly poor or absent; SG: 2.6-4.3.

Hardness: Varied (typically 6
Color: Multi-colored (pink, green, amber, clear)
Luster: Vitreous (glassy)

Identified March 21, 2026More mineral →

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At a glance

Common name: Gemstone Sand (Mineral Assortment)
Scientific name: Mixed Mineral Concentrates (Commonly including Quartz SiO2, Garnet X3Y2(SiO4)3, and Tourmaline (Na,Ca)(Li,Mg,Al)3(Al,Fe,Mn)6(BO3)3(Si6O18)(OH,F)4)
Category: mineral
Identified: March 21, 2026
Method: Standard

AI Estimated Value

$1-$5 for a small packet of micro-specimens; up to $20 per pound for bulk unsearched concentrate.

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

Formation & geological history

Formed through both igneous crystallization in pegmatites and metamorphic processes. These small grains represent 'heavy mineral' concentrates often found in alluvial deposits or as residual weathering from host rock.

Uses & applications

Used primarily in lapidary 'paydirt' bags for hobbyists, educational kits, miniature sand art, or as raw material for micro-faceted jewelry accents.

Geological facts

These tiny grains are often referred to as 'gem gravel.' In places like Sri Lanka or Madagascar, similar large-scale deposits provided the world's most famous gemstones through centuries of alluvial mining.

Field identification & locations

Identify in the field by panning stream sediments or dry-sieving alluvial soil. Look for high-clarity grains with saturated colors and geometric shapes that survive transport better than softer rock fragments.