Desert Glass (Lechatelierite / Libyanite / LDG)

Lechatelierita, Lechatelierite, Libyanit, Libyanita, ルシャトリエ石


Commonly known      rarer (so called collectors stones)      very rare (rarities)      relatively rare organic material





Formula: SiO2
Mineral class: oxides
Crystal system: amorphous (tektite)
Mohs scale: 6 - 7
Density (g/cm3): 2.50 - 2.65
Refractive index: 1.5 - 1.55
Cleavage: -
Colors: colorless, white, grey, yellowish, yellow-green
Luster: vitreous
Fluorescence: -
Pleochroism: -
Largest lechatelierite: ?
Deposits: Egyptian desert northeast of the N’Giffel Khabir Plateau (Egypt), on appr. 6,500 km2.
Discovery: 1932 (Clayton)
1st Description: 1932?
Name: Lechatelierite: to honor the French chemist Henry Louis Le Chatelier (1850 - 1936); Libyanite: from its type locality in the Libyan Desert
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Egyptian Desert northeast of the N’Giffel Khabir Plateau

Größere Kartenansicht

Lechatelierite rough

Weight: 43.20 g
Size: 6.7 x 4.1 cm
Origin: Libyan Desert / Egypt
Photo by kind permission of © www.topgeo.de
Desert Glass rough

Lechatelierite

Size: 2.9 x 1.7 x 0.95 cm
Weight: 22.68 ct
Origin: Libyan Desert / Egypt

Photo by kind permission of © www.kox-gems.com

Lechatelierite

Size: 2.93 x 2.65 x 2.12 cm
Weight: 83.94 ct
Origin: Libyan Desert / Egypt

Photo by kind permission of © www.cvs.fi
Desert Glass faceted

Lechatelierite

Weight: 11.54 ct
Origin: Libyan Desert / Egypt

Photo by kind permission of © www.topgeo.de

Lechatelierite Stone Age Blade

Origin: Libyan Desert / Egypt

Photo by kind permission of © www.topgeo.de

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