gemstone

Likely rough blue-green beryl (aquamarine)

Beryl, Be₃Al₂Si₆O₁₈; blue-green color is caused mainly by iron

AI-generated identification · may be incorrect

Pale blue-green, translucent, with a vitreous luster and hexagonal crystal structure; Mohs hardness 7.5–8, imperfect basal cleavage, and specific gravity about 2.63–2.80. The small specimen appears naturally rough or partially broken, though image-based identification is uncertain.

Identified September 7, 2026More gemstone →

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At a glance

Common name: Likely rough blue-green beryl (aquamarine)
Scientific name: Beryl, Be₃Al₂Si₆O₁₈; blue-green color is caused mainly by iron
Category: gemstone
Identified: September 7, 2026
Method: Standard

AI Estimated Value

About $1–$20 for a tiny opaque rough fragment; $20–$200+ for attractive translucent rough, with fine cut aquamarine potentially worth hundreds to thousands of dollars per carat.

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

Forms in granitic pegmatites and hydrothermal veins during late-stage crystallization of magma, commonly in Precambrian to younger continental crust. Associated minerals may include quartz, feldspar, mica, and tourmaline.

Uses & applications

Transparent material is cut as aquamarine gemstones; lower-grade pieces are collector specimens or ornamental material. Beryl is also an important beryllium ore, though gem aquamarine is valued primarily for jewelry.

Geological facts

Aquamarine is the blue to blue-green variety of beryl, related to emerald and morganite. Heating can remove green tones and produce a stronger blue color.

Field identification & locations

Look for pale blue-green color, glassy luster, hardness sufficient to scratch glass, and hexagonal prismatic crystals; quartz or pale calcite are possible look-alikes. Common sources include Brazil, Pakistan, Afghanistan, Madagascar, Nigeria, and the United States.