mineral

Pink Quartz / Agate pebble

Silicon Dioxide (SiO2)

Hardness: 6.5-7 on the Mohs scale. Color: Pinkish-brown with white translucent banding. Luster: Vitreous to waxy. Crystal Structure: Trigonal/Microcrystalline. Specific Gravity: ~2.65.

Hardness: 6
Color: Pinkish-brown with white translucent banding
Luster: Vitreous to waxy

Identified July 22, 2026More mineral →

Explore Pink Quartz / Agate pebble in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

Physical properties

Hardness: 6.5-7 on the Mohs scale. Color: Pinkish-brown with white translucent banding. Luster: Vitreous to waxy. Crystal Structure: Trigonal/Microcrystalline. Specific Gravity: ~2.65.

Formation & geological history

Formed from silica-rich fluid deposition within cavities or vesicles in host rocks, followed by natural tumbling and erosion by water streams or wave action.

Uses & applications

Used primarily as decorative stones, tumbled pebbles for landscaping, aquarium gravel, or lapidary crafting.

Geological facts

Agate and quartz pebbles acquire their smooth, rounded shape through millions of years of natural water abrasion in riverbeds or ocean shores.

Field identification & locations

Identified by its translucent to waxy appearance, quartz hardness (scratches glass), and faint banding. Commonly found on riverbanks, beaches, and gravel pits worldwide.