Opal

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Opal, 3.1 cm, from the La Carbonera mine, La Trinidad, Municipio de Tequisquiapan, Queretaro, Mexico. Ex Alejandro Escobedo; Kerith Graeber collection.

Product details

SpeciesOpal

SizeMiniature

Dimensions3.1 cm

Added on02/13/2026

LocalityMexico, Queretaro

Publications

Mineralogical Record Mineral Collections In California page 116

Current owner

Cal Graeber

Added by the community · Not a registered member

Previous owners

Date	Collector	Acquisition price
—	Alejandro Escobedo	Not disclosed

Comments

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Mineral guide

Learn about Opal

amorphous silica with water and a spectacular play-of-color; black, boulder, and fire opal varieties capture brightness, color, and collecting appeal.

Regional guide