Yellow Quartz (Citrine or Quartzite Pebble)

Physical Properties

Hardness: 7 (Mohs scale); Color: Pale yellow to honey gold; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None; Specific gravity: 2.65.

Formation & Geological History

Formed through hydrothermal processes in igneous rocks or as a result of water erosion smoothing silica-rich stones. This specimen appears to be a river-worn pebble, potentially millions of years old.

Uses & Applications

Used in gemstone jewelry, metaphysical practices, and industrial glass production. Tumbled specimens are popular for decoration.

Geological Facts

Naturally occurring yellow citrine is rare; most commercial citrine is actually heat-treated amethyst. This specimen's translucent, rounded appearance is typical of 'river glass' or quartz pebbles.

Field Identification & Locations

Identify by its ability to scratch glass and its rounded, water-worn texture. Commonly found in riverbeds, beaches, and alluvial deposits worldwide.

Identified on: 4/22/2026

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