gemstone

Golden beryl (heliodor), faceted gemstone

Beryl, Be₃Al₂Si₆O₁₈; yellow color commonly caused by iron impurities

AI-generated identification · may be incorrect

Transparent yellow, glassy luster, hexagonal crystal structure; Mohs hardness 7.5–8, no obvious cleavage. The pictured piece is cut and drilled, so exact identification cannot be confirmed by appearance alone.

Identified October 3, 2026More gemstone →

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Physical properties

Formation & geological history

Beryl crystallizes in pegmatites and hydrothermal veins; geological ages vary widely, commonly millions to billions of years. Iron-bearing varieties form the yellow-to-golden heliodor range.

Uses & applications

Used in faceted jewelry and mineral collections; beryl is also an important source of beryllium.

Geological facts

Heliodor means “gift of the sun.” Yellow beryl is often called heliodor, though gem trade names can be applied broadly.

Field identification & locations

Look for high hardness, glassy luster, and beryl-like color; gemological testing is needed to distinguish it from glass or other yellow stones. Found in pegmatites worldwide, including Brazil, Madagascar, and Ukraine.