Muonionalusta iron meteorite slice displaying classic Widmanstätten pattern, IVA fine octahedrite meteorite specimen on display stand.

Muonionalusta Meteorite Slice – 245.82g Etched Iron Meteorite | IVA Fine Octahedrite

$1,200.00
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Muonionalusta iron meteorite slice displaying classic Widmanstätten pattern, IVA fine octahedrite meteorite specimen on display stand.
  • Muonionalusta iron meteorite slice displaying classic Widmanstätten pattern, IVA fine octahedrite meteorite specimen on display stand.
  • Muonionalusta iron meteorite slice with etched Widmanstätten pattern typical of IVA fine octahedrite meteorites.
  • Muonionalusta meteorite slice held in hand showing interlocking Widmanstätten structure of an IVA fine octahedrite iron meteorite.
  • Edge profile of Muonionalusta iron meteorite slice revealing thickness and crystalline metal structure.
  • Close-up of etched Muonionalusta iron meteorite showing Widmanstätten pattern formed during slow cooling inside a planetary core.
  • Muonionalusta meteorite close-up showing deformation vein cutting across Widmanstätten pattern in the iron structure.
  • Macro photograph of Muonionalusta iron meteorite highlighting the crystalline Widmanstätten lamellae.
  • Detailed etched surface of Muonionalusta iron meteorite slice showing interlocking kamacite bands.
  • Shock deformation vein visible across the Widmanstätten structure of a Muonionalusta iron meteorite slice.
  • Macro view of Muonionalusta iron meteorite revealing complex Widmanstätten crystalline pattern.
  • Macro view of Muonionalusta iron meteorite revealing complex Widmanstätten crystalline pattern and deformation vein
  • Muonionalusta iron meteorite slice displaying classic Widmanstätten pattern, IVA fine octahedrite meteorite specimen on display stand.
  • Muonionalusta iron meteorite slice with etched Widmanstätten pattern typical of IVA fine octahedrite meteorites.
  • Muonionalusta meteorite slice held in hand showing interlocking Widmanstätten structure of an IVA fine octahedrite iron meteorite.
  • Edge profile of Muonionalusta iron meteorite slice revealing thickness and crystalline metal structure.
  • Close-up of etched Muonionalusta iron meteorite showing Widmanstätten pattern formed during slow cooling inside a planetary core.
  • Muonionalusta meteorite close-up showing deformation vein cutting across Widmanstätten pattern in the iron structure.
  • Macro photograph of Muonionalusta iron meteorite highlighting the crystalline Widmanstätten lamellae.
  • Detailed etched surface of Muonionalusta iron meteorite slice showing interlocking kamacite bands.
  • Shock deformation vein visible across the Widmanstätten structure of a Muonionalusta iron meteorite slice.
  • Macro view of Muonionalusta iron meteorite revealing complex Widmanstätten crystalline pattern.
  • Macro view of Muonionalusta iron meteorite revealing complex Widmanstätten crystalline pattern and deformation vein
Muonionalusta Meteorite Slice – 245.82g Etched Iron Meteorite | IVA Fine Octahedrite

Meteorite Details

Meteorite Name: Muonionalusta
Subtype: fine octahedrite
Classification: Iron (IVA find octahedrite)
Weight: 245.82 g
Year Found: 1906
Fall / Find: Find
Location: Sweden

Specimen Description

Meteorite: Muonionalusta Classification: Iron meteorite – IVA fine octahedrite Weight: 245.82 grams Finish: Cut, polished, and etched slice Origin: Norrbotten County, Sweden

Muonionalusta Meteorite Slice – 245.82g Etched Iron Meteorite | IVA Fine Octahedrite

$1,200.00

Muonionalusta Meteorite Slice – 245.82g

Etched Iron Meteorite Showing Widmanstätten Pattern

Weight: 245.82g grams
Meteorite: Muonionalusta
Type: Iron meteorite
Group: IVA – Fine Octahedrite
Location Found: Norrbotten County, Sweden
Discovery: 1906

This 245.82g Muonionalusta meteorite slice displays the natural Widmanstätten pattern, the interlocking nickel-iron crystal structure that forms only inside the metallic core of an asteroid.

When iron meteorites cool extremely slowly in space, two alloys—kamacite and taenite—separate into geometric lamellae. After cutting and etching, this structure becomes visible as the famous Widmanstätten pattern seen in octahedrite iron meteorites.

Muonionalusta is classified as a fine octahedrite belonging to the IVA chemical group, according to the Meteoritical Bulletin database.

Cross-Cutting Deformation Feature

This slice also shows a distinct cross-cutting deformation feature visible after etching. The line intersects the Widmanstätten lamellae at an oblique angle and likely represents a deformation or fracture zone within the metalcreated during the meteorite’s complex history in space.

Features like this are occasionally revealed during etching and add additional visual and scientific interest, highlighting the stresses these asteroid fragments experienced during collisions in the early solar system.

A Fragment of an Asteroid Core

Iron meteorites originate from the metallic cores of early planetary bodies that formed during the birth of the solar system roughly 4.5 billion years ago. Catastrophic collisions later exposed and shattered those cores, sending fragments through space until some eventually fell to Earth.

Muonionalusta is particularly notable because it is believed to have reached Earth roughly one million years ago, making it one of the oldest known meteorites in terms of terrestrial age.

Specimen Highlights

• Large collector specimen – 245.82g
• Distinct Widmanstätten crystal structure
• Cut, polished, and etched to reveal internal metal phases
• Classified IVA fine octahedrite iron meteorite
• Material recovered from the Muonionalusta strewn field in northern Sweden

Authenticity guaranteed.
All meteorites sold by Treasure Coast Meteorite Co. are genuine and if appropriate, identified using official Meteoritical Bulletin nomenclature.

Meteoritical Bulletin writeup for Muonionalusta Iron Meteorite

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