Quartz Pebble

Quartz var. Common Quartz · Mineral Specimen

Quartz Pebble

Crystal System

Trigonal, massive or rounded pebble habit due to water transport

Mineral Group

Silicates (Tectosilicates)

Chemical Formula

SiO2

Formation Process

Formed through various geological processes (igneous, metamorphic, or hydrothermal) and subsequently weathered, transported, and rounded by water action in sedimentary environments

About This Crystal

An opaque, weathered, water-worn pebble with a whitish to pale greyish-tan exterior and a slightly pitted surface texture showing a small internal indentation or vug

Physical Characteristics

Color: Off-white, grey, and light tan; Streak: White; Cleavage: None; Fracture: Conchoidal; Specific Gravity: Approximately 2.65; Tenacity: Brittle

Optical Properties

Uniaxial positive, doubly refractive, vitreous to dull luster depending on weathering degree

Hardness & Durability

Origin Region

Found worldwide in alluvial deposits, riverbeds, and beaches

Hardness & Durability

Mohs hardness of 7, excellent durability and toughness, resistant to chemical weathering and wear

Care & Maintenance

Can be easily cleaned with warm soapy water and a soft brush; highly durable and chemically inert against household cleaners

Rarity & Value

Extremely common worldwide, minimal monetary value as a raw pebble

Special Characteristics

Displays signs of mechanical abrasion, rounding, and weathering typical of alluvial transport

Lore & History

Used historically by ancient human cultures for making primitive stone tools, arrowheads, and fire-starting strikers. In modern metaphysical practices, clear and common quartz varieties are traditionally associated with amplification, clarity, and balancing all chakras.

Identified on 8/30/2026