Libyan Desert Glass | Gemopedia

This naturally forming glass is found in the Western Desert of Egypt. Although it was only discovered by the scientific community in 1932, we know of Libyan desert glass being used for ornamentation as far back as Ancient Egypt. Its origin is disputed, as some believe it is a tektite, like moldavite, formed from a meteor impact, while others believe it formed as a result of the aerial explosion of a meteorite that did not make impact.
Colors
Light Yellow To Greenish Yellow

Libyan Desert Glass Classification

Common Name

Libyan Desert Glass

Species

Tektite

Variety

Colors

Light Yellow To Greenish Yellow

Alternate Names

Gemstone Groups

Key Separations

RI, SR nature, magnification and SG

Comments

Natural glass

Libyan Desert Glass Optical Properties

Transparency

Semitransparent To Translucent

Refractive Index

1.46

Birefringence

Optic Character

NA

Optic Sign

Polariscope Reaction

Singly Refractive (SR) With ADR

Fluorescence

SWUV: Inert
LWUV: Inert

CCF Reaction

Pleochroism

None

Dispersion

Comments

Libyan Desert Glass Chemistry & Crystallography

Chemical Name

Silicon dioxide

Chemical Formula

SiO2

Synthesis

Crystal System

NA

Classification

Mineraloid

Nature

Natural

Crystallinity

Non-Crystalline

Comments

Libyan Desert Glass Characteristic Physical Properties

Hardness

5-5.5

Streak

Specific Gravity

Typical: 2.2

Toughness

Varies

Inclusions

Libyan desert glass might contain irregularly shaped gas bubbles and tiny rounded grains.

Luster

Vitreous

Stability

Fracture

Conchoidal

Cleavage

None

Comments

JTV on Google+
0 Items
My Wish List
Close
Item
Description
Qty.
Price


Estimated Order Total:
0
Total Due Today:
0
Close
Item
Description
Qty.
Price


Page of 1