Libyan Desert Glass
A variety of Metamorphic
What is Libyan Desert Glass?
Libyan Desert Glass is a rare rock that can only be found in the Western Desert of Egypt, which is where it gets its name. This rock is primarily made from pure molten silica glass called lechatelierite. While the origins of libyan Desert Glass are unknown, it is strongly suggested that this rock was regarded by ancient Egyptians as a gemstone.
Optical Properties
- Refractive Index
- 1.46-1.465
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Libyan Desert Glass before comparing listings or appraisals.
Size & Weight
Larger, intact specimens usually command higher prices.
Rarity & Demand
Scarce material or popular varieties sell at a premium.
Condition & Finish
Chips, repairs, and heavy wear lower value; clean prep helps.
Treatment & Provenance
Untreated specimens with documented locality are prized.
Libyan Desert Glass Localities Map
See where Libyan Desert Glass is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Health & Safety Information
- ⚠️Quartz, silica, crystalline silica and flint are non-toxic materials, but very fine dust containing quartz, known as respirable crystalline silicon (RCS), can cause serious and fatal lung disease. Lapidaries should exercise caution when cutting silica.
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Quick Facts
Physical Properties
- Color
- Yellow, green, brown
- Hardness (Mohs)
- 6.5
- Density
- 2.2 - 2.65 g/cm³
- Streak
- Dark brown
- Luster
- Vitreous
Chemical Properties
- Chemical Formula
- SiO2
Also Known As
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Libyan Desert Glass FAQs
How do I identify Libyan Desert Glass?
Libyan Desert Glass can be identified by its hardness of 6.5 on the Mohs scale, Yellow color, Vitreous luster. Look for these key characteristics when examining specimens.
What color is Libyan Desert Glass?
Libyan Desert Glass typically appears in Yellow, green, brown. Color can vary depending on impurities and formation conditions.
How hard is Libyan Desert Glass?
Libyan Desert Glass has a hardness of 6.5 on the Mohs scale. This gives it moderate hardness.
