mineraloid
Tektite (Indochinite)
Tektite - High-silica amorphous glass (SiO2 + Al2O3)
Hardness: 6-7 on Mohs scale; Color: Black, dark brown (translucent on thin edges); Luster: Vitreous to dull; Structure: Amorphous (non-crystalline); Specific Gravity: 2.3-2.5.
- Hardness
- 6-7 on Mohs scale
- Color
- Black, dark brown (translucent on thin edges)
- Luster
- Vitreous to dull
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Physical properties
Hardness: 6-7 on Mohs scale; Color: Black, dark brown (translucent on thin edges); Luster: Vitreous to dull; Structure: Amorphous (non-crystalline); Specific Gravity: 2.3-2.5.
Formation & geological history
Formed approximately 780,000 years ago during a massive meteorite impact. Terrestrial silica-rich soil was instantly melted and ejected into the upper atmosphere, cooling into glass beads during re-entry.
Uses & applications
Used primarily in jewelry (cabochons), collection specimens, and widely used in metaphysical/spiritual practices as 'impact glass'.
Geological facts
Indochinites belong to the largest strewn field on Earth, covering much of Southeast Asia and Australia. They are not meteorites themselves, but 'splash' remnants of Earth's crust that traveled into space and back.
Field identification & locations
Identify by looking for 'pitting' or 'dimpling' (lechatelierite bubbles) on a dark, glassy surface. Common in Thailand, Vietnam, and Cambodia. Check for translucency by holding a high-powered light to thin edges.
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