Mixed Quartz and River Pebbles (Stone Collection)

Physical Properties

Hardness: 5-7 (Mohs); Color: Varied (white, pink, grey, brown, green); Luster: Vitreous to dull; Crystal structure: Mainly trigonal; Cleavage: None/Conchoidal

Formation & Geological History

An assortment of polished, tumbled, and raw specimens. Many are silicates formed in magma cooling or metamorphic events, later weathered in rivers or processed in rock tumblers.

Uses & Applications

Decorative accents, educational hobbyist collections, garden decor, and alternative healing (crystal collecting).

Geological Facts

This collection includes Amethyst (purple quartz), Rose Quartz (pink), Tiger's Eye, Aventurine (green), and Granite. Some stones appear to be 'craft store' tumbled stones mixed with natural river rock and a piece of fossiliferous limestone or coquina.

Field Identification & Locations

Identify by checking hardness (quartz will scratch glass) and looking for distinct colors. Common in glacial till, riverbeds, and as commercially sold decorative mixes.

Identified on: 4/16/2026

Mode: Standard