On the structure of an iron-nickel meteorite

his is a macro photograph of the Muonionalusta meteorite in the ground and etched condition showing the Wedmanstatten structure. The diagonal line in the lower right hand zone of the specimen is a prior-Taenite grain boundary.
his is a macro photograph of the Muonionalusta meteorite in the ground and etched condition showing the Wedmanstatten structure. The diagonal line in the lower right hand zone of the specimen is a prior-Taenite grain boundary.
Figure 1: This is a macro photograph of the Muonionalusta meteorite in the ground and etched condition showing the Wedmanstatten structure. The diagonal line in the lower right hand zone of the specimen is a prior-Taenite grain boundary.
Partial Iron-Nickel phase diagram.[4]
Partial Iron-Nickel phase diagram.[4]
Figure 2: Partial Iron-Nickel phase diagram.[4]
Photomicrograph of Muonionalusta meteorite with Kamacite plates almost parallel to section plane. False color Nomarski DIC image to enhance relief.
Photomicrograph of Muonionalusta meteorite with Kamacite plates almost parallel to section plane. False color Nomarski DIC image to enhance relief.
Figure 3: Photomicrograph of Muonionalusta meteorite with Kamacite plates almost parallel to section plane. False color Nomarski DIC image to enhance relief.
Widmanstatten structure of Kamicite in the Muonionalusta meteorite. P is the Plessite structure. A is a Kamacite lamellla in the cutting plane.
Widmanstatten structure of Kamicite in the Muonionalusta meteorite. P is the Plessite structure. A is a Kamacite lamellla in the cutting plane.
Figure 4: Widmanstatten structure of Kamicite in the Muonionalusta meteorite. “P” is the Plessite structure. “A” is a Kamacite lamella in the cutting plane.
Plessite surrounded by Kamicite plates. Muonionalusta iron meteorite, Nomarski DIC image.
Plessite surrounded by Kamicite plates. Muonionalusta iron meteorite, Nomarski DIC image.
Figure 5: Plessite surrounded by Kamicite plates. Muonionalusta iron meteorite, Nomarski DIC image.
Plessite in the Muonionalusta meteorite. Nomarski DIC image.
Plessite in the Muonionalusta meteorite. Nomarski DIC image.
Figure 6: Plessite in the Muonionalusta meteorite. Nomarski DIC image.

References

Richard Rateick, Jr., is a Materials Scientist, Mechanical Engineer and Chemist who is also a consulting business owner: rexp2research.com.

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