mineral
White Agate (resembling Bone Chalcedony)
Cryptocrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness: 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
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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.
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Metamorphic
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Tumbled granite
Granite, a coarse-grained felsic intrusive igneous rock
igneous
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Granite
Granite (Phaneritic intrusive igneous rock)
igneous