Rock Identifier
Citrine-colored polished beads (material uncertain) (Possibly citrine quartz (SiO₂); the image alone cannot confirm the beads are natural stone rather than glass or another imitation.) — gemstone
gemstone

Citrine-colored polished beads (material uncertain)

Possibly citrine quartz (SiO₂); the image alone cannot confirm the beads are natural stone rather than glass or another imitation.

AI-generated identification · may be incorrect

Round, translucent golden-yellow beads with a vitreous-looking luster. If quartz, hardness is 7 Mohs and its crystal structure is trigonal; bead polishing obscures cleavage and crystal form.

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Physical properties

Round, translucent golden-yellow beads with a vitreous-looking luster. If quartz, hardness is 7 Mohs and its crystal structure is trigonal; bead polishing obscures cleavage and crystal form.

Formation & geological history

Natural citrine forms when trace iron colors quartz, commonly in hydrothermal veins and pegmatites; much commercial citrine is heat-treated amethyst. The pictured beads’ geological origin and treatment cannot be established visually.

Uses & applications

Used for jewelry and craft beads; natural, well-colored citrine is also collected.

Geological facts

Yellow bead color alone is not diagnostic: glass and treated quartz can look similar.

Field identification & locations

Check for natural internal features and hardness only with appropriate testing; professional gemological testing is needed to identify material and treatment. Citrine occurs notably in Brazil, Madagascar, and Zambia.