Hexahedrite
Meteorite, tektite, or impactite
Take care.
- Breaks down in damp air: Keep it dry and in steady humidity; some crumble or rot as they take on moisture.
About it
Low-nickel iron meteorite (about 4.5 to 6.5 per cent) made of large single crystals of kamacite, so etching shows no Widmanstätten pattern, only fine Neumann lines. Coahuila in Mexico and Braunau, which fell in 1847, are examples.
- Type
- Meteorite, tektite, or impactite (iron)
- Group
- Iron meteorite, hexahedrite
- Specific gravity
- 7.5–8
- Lustre
- metallic
- Colours
- black to brown crust, steel grey when cut, rusty brown when weathered
- Transparency
- opaque
- Magnetic
- Strongly
Typical values: real specimens vary. For more, see mindat.org.