SKU: 30990506226

NWA 17919 Chondrite Meteorite Individual, H6, 488.00g, Mirror Polished Window with Fusion Crust

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Description

NWA 17919 Chondrite Meteorite Individual, H6, 488.00g, Mirror Polished Window with Fusion CrustProfessional preparation reveals interior structure This 488. 00 gram individual from the NWA 17919 find combines scientific preparation with preserved natural exterior. A mirror polished window cuts through the interior, exposing the internal structure while the remaining surface retains the natural fusion crust formed during atmospheric entry. The exterior displays regmaglypts across the unpolished portions, offering a direct comparison between the

Professional preparation reveals interior structure

This 488.00-gram individual from the NWA 17919 find combines scientific preparation with preserved natural exterior. A mirror polished window cuts through the interior, exposing the internal structure while the remaining surface retains the natural fusion crust formed during atmospheric entry. The exterior displays regmaglypts across the unpolished portions, offering a direct comparison between the meteorite's arrival state and its geological interior.

The polished window reveals the equilibrated texture characteristic of H6 chondrites. Chondrules remain visible despite the thermal metamorphism that defines petrologic type 6 classification. Metal grains distribute throughout the matrix, and the polished surface allows direct observation of grain boundaries and mineral assemblages that formed 4.56 billion years ago in the solar nebula.

Structure and features

The mirror polish exposes chondrules that have been partially recrystallized but remain structurally identifiable. Type 6 metamorphism occurred while the parent asteroid was still accreting, heating the material to temperatures between 700 and 950 degrees Celsius. This thermal processing homogenized the olivine and pyroxene compositions while preserving the fundamental chondritic architecture.

Metal distribution appears as bright reflective grains against the silicate matrix. The fusion crust on unpolished surfaces measures approximately one millimeter thick, showing the glassy texture created when surface material melted during the few seconds of atmospheric passage. Regmaglypts indent the crust where differential ablation carved thumbprint-like depressions into the softened surface.

Scientific context

H6 chondrites represent material from the ordinary chondrite parent asteroid that experienced significant thermal metamorphism early in solar system history. The H group designation indicates high total iron content (25-31% by mass) with most iron present as metal rather than bound in silicates. This specimen preserves a record of both nebular condensation processes visible in its chondrules and subsequent parent body thermal evolution.

Ordinary chondrites account for roughly 80% of meteorite falls, making them our most abundant samples of primitive solar system material. The equilibrated texture in type 6 specimens provides insight into thermal conditions within asteroid interiors during the first few million years after solar system formation. Learn About Meteorites and their role in understanding planetary formation processes.

Frequently asked questions

Is this meteorite authenticated? NWA 17919 is classified in the Meteoritical Bulletin as an H6 ordinary chondrite. You can verify this classification through the Meteoritical Bulletin database. This specimen includes a certificate of authenticity with purchase.

What does the H6 classification indicate? The H indicates high total iron content in the ordinary chondrite classification system. The number 6 represents petrologic type, meaning this material experienced significant thermal metamorphism that equilibrated mineral compositions while the parent asteroid was forming. Type 6 is the highest metamorphic grade that still preserves recognizable chondrules.

What is included with this specimen? You receive the 488.00-gram NWA 17919 individual with mirror polished window and certificate of authenticity. No display stand is included unless separately noted.

What are regmaglypts? Regmaglypts are the thumbprint-like depressions visible on the fusion crust. They form during atmospheric entry when differential ablation carves into the melting surface. Turbulent airflow creates vortices that preferentially remove material from specific areas, leaving the characteristic dimpled texture.

Display specimen with scientific utility

The 488.00-gram mass provides substantial hand presence. The mirror polished window transforms this individual into a teaching specimen that demonstrates meteorite internal structure while the preserved fusion crust and regmaglypts illustrate atmospheric entry processes. This dual presentation makes the specimen suitable for both display and comparative study.

H6 chondrites with professional preparation occupy a specific niche for collectors seeking equilibrated material that still retains textural evidence of its chondritic origin. The size allows for detailed examination without magnification, and the mass-to-surface-area ratio delivers visual impact in collection displays. Collectors building comprehensive ordinary chondrite suites will find this specimen represents the high-metamorphic-grade end of the H group sequence. Browse additional specimens in our Chondrites collection.

Meteoritical Bulletin entry: NWA 17919 | Classification: H6 Ordinary Chondrite | Find, Algeria, 2024

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SKU: 30990506226

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Jill
Alexandria, US
★★★★★ 3
Went from five stars to three.
Color: White Marble Look, Color: White Marble Look
I was thrilled with this dispenser & sponge holder for the first month or two then soap started oozing out of the top. (See photo) I didn’t change types of soap but am trying different things now to see if it helps. It’s a great fit in my kitchen, holds the items I need, is sturdy, looks classy and clean but I’m not sure if I’ll get used to the blue ring of soap oozing out. I’ve been using this for 2.5 months at time of review.
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Reviewed in the United States on February 6, 2026
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Thaliea
Draper, US
★★★★★ 5
Aesthetically pleasing
Color: Black
Very aesthetically pleasing, easy to clean, will last a lifetime because of the material quality and it feels like stone more than plastic.
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Reviewed in the United States on November 6, 2025
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amazonaddict
Chelsea, US
★★★★★ 5
Attractive and works great. Be sure to clean the suction cups and sink before using!
Style: Scroll
I have wanted a sponge holder to put inside my sink for a while now. I wanted something attactive and I wanted it to work as it should. Seemed reasonable until I started looking and reading reviews. The biggest complaint appeared to be that these sponge holders do not stay attached to the sink. The reviews for this particular holder were great. Customers stressed cleaning the suction cups and sink before using. I am really glad they did because holder arrived in the packaging with zero instructions. Because I read the reviews I knew what to do and it worked! I am very pleased with this sponge holder. It is attractive, it feels really sturdy and it stays on the side of stainless steel sink just fine.
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Reviewed in the United States on August 8, 2022
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Verified Purchase
Megan
Belleville, US
★★★★★ 5
Pretty; sturdy; perfect size
Style: Contempo, Style: Contempo
Nice, sturdy little sponge and brush holder for the side of the sink. I was afraid my sink would me too small and spent lots of time trying to find a holder for the rim/countertop area. This one is not too big but fits my dobie and brillo perfectly. My sink is a little too short for a full fledged brush so when I tried to put in the brush I use sometimes it sticks up too much. That's really not the products fault so I won't subtract the score because of it. Also, I decided to put the holder flush against the side closest to me, instead of the side or the back of the sink. If I had chosen that location, the brush sticking out might not be an issue.
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Reviewed in the United States on July 26, 2016
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Minnesota Mom
Dallas, US
★★★★★ 4
Yes the suction works on stainless steel!!
Style: Contempo
I've been through many rag holders before including a magnetic one, which broke. But the suction on this sucker (pun intended) is top notch! It doesn't slide around or come off or slide to the bottom of the sink. It just stays put which is so unique for anything with suction cups. The only reason i am giving it 4 stars instead of 5 is that it is quite small. I wish it were a few inches longer so i could easily fit two rags or sponges in the holder. But i have to jam them in and its not pretty. So for the price, i think it should have been bigger. Still a good product because of the functionality of the suction cups.
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Reviewed in the United States on October 3, 2017

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