SKU: 94203600499

Seymchan Pallasite Meteorite Full Slice, PMG, 591.00g, Widmanstätten Pattern

Sale price$1125.00 Regular price$1250.00
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 13 - Jul 18

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Seymchan Pallasite Meteorite Full Slice, PMG, 591.00g, Widmanstätten Pattern591g full slice from the iron dominant zone with crisp Widmansttten banding edge to edge This 591. 00g Seymchan full slice is cut from the iron dominant zone of the mass, presenting no olivine. The Widmansttten pattern reads across the entire face without interruption. Kamacite bands are sharply delineated throughout, the geometric interlocking structure is consistent from edge to edge, and there is no significant oxidation compromising the etched

591g full slice from the iron-dominant zone with crisp Widmanstätten banding edge to edge

This 591.00g Seymchan full slice is cut from the iron-dominant zone of the mass, presenting no olivine. The Widmanstätten pattern reads across the entire face without interruption. Kamacite bands are sharply delineated throughout, the geometric interlocking structure is consistent from edge to edge, and there is no significant oxidation compromising the etched surface. The specimen is large enough that the crystal geometry registers at a glance rather than requiring close inspection.

Structure and features

The Widmanstätten pattern in this slice formed as the parent body cooled over millions of years deep inside a differentiated asteroid. The process produced an interlocking lattice of kamacite and taenite, two iron-nickel alloys that precipitate at different temperatures and lock into geometric bands as the system slowly equilibrates. The structure cannot be produced artificially and is one of the definitive indicators of iron meteorite authenticity. The banding width visible in this slice is consistent with Seymchan's structural identity as a coarse octahedrite, the classification it held prior to reclassification as a pallasite, and the geometry is uninterrupted across the full face.

Due to Seymchan's heterogeneous internal structure, specimens fall into two distinct categories: those from olivine-bearing zones containing silicate crystal clusters, and those from iron-dominant zones consisting almost entirely of nickel-iron metal. This slice is from the iron-dominant zone. Both zone types are scientifically documented within the same classified meteorite.

Scientific context

Seymchan was found in June 1967 by geologist F. A. Mednikov in the dry bed of the Hekandue river, a left tributary of the Yasachnaya in Magadan Oblast, Russia. The main mass of 272.3 kg was recovered during a geological survey. A second specimen of 51 kg was located nearby in October 1967. Both masses were turned over to the Academy of Sciences of the USSR. The meteorite was originally classified as an IIE anomalous coarse octahedrite.

In 2004, Dmitri Kachalin recovered additional material from the original find area, and approximately 20% of the new specimens were found to contain olivine crystals. This revealed the pallasitic nature of the mass. Van Niekerk et al. formally reclassified Seymchan as a pallasite in 2007. For further reading on pallasite formation and structure, see our guide: What Is a Pallasite?

Frequently asked questions

Is this meteorite authenticated? Yes. Seymchan is classified in the Meteoritical Bulletin as Pallasite, PMG. You can verify the classification here: Seymchan. This specimen ships with a certificate of authenticity from Treasure Coast Meteorite Co. (IMCA #3323).

What does PMG mean? PMG stands for pallasite main group, the dominant chemical grouping among pallasites. Seymchan was reclassified from an IIE anomalous coarse octahedrite to PMG following the identification of olivine-bearing zones in recovered material studied by van Niekerk et al. (2007).

Why does this slice have no olivine if Seymchan is a pallasite? Seymchan is structurally heterogeneous. Some zones of the mass contain olivine crystal clusters; others consist almost entirely of nickel-iron metal. This slice is cut from an iron-dominant zone. Both zone types are authentic and represent the same classified meteorite.

What care does an etched iron meteorite slice require? Store in a low-humidity environment. Periodic application of Renaissance Wax or food-grade mineral oil to the etched face will slow oxidation. Avoid handling with bare hands and keep away from moisture sources.

What is included with this specimen? The 591.00g Seymchan full slice and a certificate of authenticity with full classification details from Treasure Coast Meteorite Co. (IMCA #3323).

Collector significance

Full slices of Seymchan at this size are not commonly available. Most material on the collector market comes as smaller partial slices, end cuts, or fragments. At 591g and over 20 cm in length, this specimen represents a substantial section of the mass. The full-slice format is what best displays Widmanstätten structure at scale, and in this specimen the geometry is uninterrupted from edge to edge with no significant oxidation or surface compromise. The iron-dominant zone is the material that most clearly expresses the structural identity established during Seymchan's original IIE octahedrite classification, and that structure is the primary visual feature of this slice.

Seymchan occupies a specific position in the collector market as a pallasite with two visually distinct specimen types from the same classified mass. Collectors working across meteorite categories often target both. This slice represents the iron-dominant type in a format and at a size that is increasingly difficult to source as original stock is cut down and dispersed.

Meteoritical Bulletin entry: Seymchan | Classification: Pallasite, PMG | Find, Russia, 1967

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 94203600499

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.2 ★★★★★
Based on 2472 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
J
Verified Purchase
Jason Dong
Cuba, US
★★★★★ 5
my dogs love it
Color: Orange
This interactive toy has been a lifesaver for keeping my furry friend occupied. It moves around in unpredictable ways, which really keeps him engaged and guessing. The rope attachment is a nice touch, allowing for a bit of tug-of-war when he's feeling energetic. It's durable enough to withstand his enthusiastic play, which is a huge plus. I've noticed he's less anxious and destructive when I'm not home since he has this to play with. Definitely a great purchase for any dog owner looking to provide some mental stimulation.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
D
Verified Purchase
Douglas J
Cuba, US
★★★★★ 5
How many dog toys have you bought that just laid on the floor unused?
Color: Orange
New husky has more energy than an entire pre-school - even being walked more than three miles a day wasn’t sufficient to drain her excess energy. I threw the dice on this - and it’s AWESOME. Comes with an extra rope and an extra side piece. Rechargeable with a USB-C cable. When you turn it on, the blue LEDs flash, the entire device buzzes, bounces, and races back and forth across the floor. After a couple of days of uncertainty, my new husky LOVES this. She chases it around, grabs it by the attached rope and carries it from room to room. After a short bit of activity, the toy goes into ‘sleep’ mode, until either the dog touches it again or a timer has elapsed, and then it fires up and starts buzzing and racing around the floor again. From a full charge, the toy will keep your dog entertained all day. Bright orange color makes it much easier to find when it’s rolled behind the toilet (as it did this afternoon). Sturdy. Highly resistant to chew damage. If this one wears out or breaks, I’ll absolutely get another one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
G
Verified Purchase
Grant
Port Orchard, US
★★★★★ 4
Puppy interactive toy
Color: Orange, Color: Orange
It’s a great toy as it keeps my 5 month old puppy very entertained! It is pretty hardy and made of good material as she tries to throw it around and chew it. She does swing it around and the hard part will hit her. She doesn’t seem bothered by it tho lol good size and minimum noise When I first introduced her to it she was a little scared but now she gets excited to play with it once it finishes charging.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026
L
Verified Purchase
LEE SANG
Boise, US
★★★★★ 5
My Dog Is Obsessed With This Toy!
Color: Orange, Color: Orange
My dog absolutely loves this toy and plays with it every day. The moving and rolling action keeps him entertained much longer than regular toys. He loves chasing it around the house and tugging on the rope. It’s also nice because it helps burn off some of his energy indoors. The material feels pretty sturdy, and charging was easy. Definitely one of the best interactive toys I’ve bought for my dog!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
R
Verified Purchase
rebe99
Dallas, US
★★★★★ 3
Waste of Money
Color: Orange
Cool toy but my dog ate through it the second day he played with it. It is not for strong dogs. No durability. I had to throw away the orange covers and now he just throws it around.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026

recommand products