Granite River Pebble

Physical Properties

Hardness: 6-7 Mohs; Color: Speckled tan, olive-gold, and grey; Luster: Dull/Sub-vitreous; Crystal Structure: Phaneritic (visible interlocking crystals); Cleavage: None (fractures irregularly); Specific Gravity: 2.6-2.7

Formation & Geological History

Formed from the slow crystallization of magma below Earth's surface. It has been shaped and smoothed into a pebble over thousands of years by the mechanical erosion of water in a river or coastal environment.

Uses & Applications

Commonly used as decorative garden stones, 'worry stones', or engraved gift items (such as the 'Love' inscription seen here). In larger forms, it is a primary construction material for countertops and monuments.

Geological Facts

This specific stone has been polished and engraved with the word 'LOVE' in gold-colored paint. Granite makes up a large portion of the Earth's continental crust and is exceptionally durable.

Field Identification & Locations

Identify in the field by the salt-and-pepper speckled appearance and the presence of visible mica, quartz, and feldspar crystals. This smooth, rounded shape is a result of fluvial transport.

Identified on: 5/8/2026

Mode: Standard