mineral

White Agate (resembling Bone Chalcedony)

Cryptocrystalline Quartz (SiO2)

Hardness: 6.5-7 on Mohs scale; Color: Milky white to translucent; Luster: Waxy to vitreous; Crystal structure: Hexagonal (trigonal); Cleavage: None; Specific Gravity: 2.58-2.64

Hardness: 6
Color: Milky white to translucent
Luster: Waxy to vitreous

Identified January 22, 2026More mineral →

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 Mohs scale; Color: Milky white to translucent; Luster: Waxy to vitreous; Crystal structure: Hexagonal (trigonal); Cleavage: None; Specific Gravity: 2.58-2.64

Formation & geological history

Formed primary in volcanic and metamorphic rocks through the deposition of silica from groundwater in cavities. This specific white variety is often found in basaltic geodes or sedimentary layers.

Uses & applications

Extensively used in lapidary arts for beads, amulets, and ornamental jewelry. Highly valued in traditional Tibetan and Himalayan jewelry when paired with turquoise and coral.

Geological facts

In many cultures, milky white agate is used as a legal substitute for ivory or bone because it is more durable and ethical. It is often referred to as 'Peace Stone' in metaphysical circles.

Field identification & locations

Identified by its waxy texture and cool touch compared to plastic or bone. While it lacks internal structure, high-quality specimens show a subtle translucency when held to light. Modern sources include India, Brazil, and Madagascar.

Other mineral specimens

See all

Sandstone (with potential mineral staining/concretions)

Arenite (SiO2 based)

sedimentary

Epidote

Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)

metamorphic

Nephrite Jade

Nephrite

Mineral/Rock

Banded Gneiss (River Rock/Pebble)

Gneiss (specifically a banded variety often found as a river rock)

Metamorphic Rock

Green Apatite on Albite

Fluorapatite [Ca5(PO4)3F] on Albite [Na(AlSi3O8)]

mineral

Epidote

Epidote - Ca2(Al2,Fe3+)3(SiO4)3(OH)

mineral