Midnight Meteorites

NWA 13917 Winonaite Slice Chondrite with Starry Metal Flecks - 18.7 grams

$275.00 $305.00 9% Off
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This whole slice is polished on one side and reveals a stunning starry field of metal flecks throughout. I love this meteorite because it can look a bit benign in the shadows, but when the light hits it, jaws hit the ground. It weighs 18.7 grams. This is one of only 105 classified winonaite falls, making it the trifecta combination of rare, beautiful, and scientifically important.

You can view the official classification of this meteorite here: https://www.lpi.usra.edu/meteor/metbull.cfm?code=74136

 

Northwest Africa 13917 (NWA 13917) is a rare primitive achondrite classified as a winonaite. This meteorite sits at a transitional point in planetary evolution: unlike chondrites, it has been partially melted and chemically reworked, yet it still preserves primitive features from the earliest solar system. Its interior reveals a fine-grained mosaic of silicate minerals -- primarily enstatite and diopside -- with scattered olivine, interwoven with roughly 10% metallic phases like kamacite, taenite, and troilite. This texture reflects a parent body that experienced partial differentiation, meaning it began to separate into layers (like core and mantle) but never fully completed the process. Oxygen isotope data further confirms its classification and links it to a small, early-formed asteroid that underwent limited heating. As a result, NWA 13917 provides an important snapshot of the intermediate stage between primitive chondritic material and fully differentiated planetary bodies, offering insight into how early asteroids evolved thermally and chemically in the first few million years of solar system history. 

This meteorite is not just a collectible; it’s an educational tool and conversation starter that brings the mystery and science of space directly into your hands.

The blue scale cube displayed in some of the photos is 1 cm x 1 cm x 1 cm and is used only to represent scale. It is not included in your purchase.

Your purchase includes the exact stone pictured, a Certificate of Authenticity, a custom 3D printed display stand, and a lunar surprise 🌙

My name is Dr. Chris Sanders, and I am a member of the International Meteorite Collectors Association (Member ID 8303). Purchasing from an IMSA member guarantees you're working with trusted members of the meteorite community. You can watch my free meteorite education videos on YouTube or other social media platforms here: https://linktr.ee/meteocracy. 

 

Meteorite Features

--Achondrite--

A broad class of stony meteorites that lack chondrules—the round grains found in most primitive meteorites—and instead formed through igneous processes on differentiated planetary bodies. Achondrites originate from the crusts or mantles of asteroids, the Moon, or Mars, and are composed of minerals that crystallized from molten rock. Their varied compositions reflect volcanic activity, impact events, and planetary evolution, making them crucial to understanding the geological history of the solar system’s early bodies.

--Stone Meteorite--

The most common type of meteorite, these rocky visitors from space are similar to Earth rocks but with a twist. They often contain tiny, round particles called chondrules, which formed in the early solar system. Stone meteorites give us a peek into the building blocks of planets!

NWA 13917 Winonaite Slice Chondrite with Starry Metal Flecks - 18.7 grams

$275.00 $305.00 9% Off

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