Ksar Ghilane 022 Ungrouped Achondrite Meteorite Slice – 1.75g
$90.00 USD
Sale price
$90.00 USD
Regular price
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Meteorite Details
Meteorite Name: Ksar Ghilane 022
Subtype: Achondrite
Classification: Achondrite-ung
Weight: 1.75 g
Year Found: 2023
Fall / Find: Find
Location: Tunisia
Specimen Description
Ksar Ghilane 022 is a classified ungrouped achondrite, representing differentiated planetary material that does not fit within established meteorite groups. This 1.75g slice displays a fine-grained igneous texture consistent with achondritic material, reflecting formation through melting and recrystallization on a parent body early in solar system history. Ungrouped achondrites are particularly significant due to their uncertain origins, often representing fragments of previously unknown or poorly sampled planetary bodies. Offered as a prepared slice, this specimen provides a rare opportunity to acquire differentiated planetary material outside of the more common achondrite groups, making it both scientifically important and highly collectible.
Ksar Ghilane 022 Ungrouped Achondrite Meteorite Slice – 1.75g
$90.00 USD
Sale price
$90.00 USD
Regular price
Specimen Details:
Weight: 1.75 grams
- Classification: Ungrouped Achondrite
- Meteorite: Ksar Ghilane 022
- Form: Full slice
- Find Location: Tunisia
This full slice showcases the distinctive characteristics of differentiated asteroidal material that has undergone melting and crystallization processes. The specimen offers a window into the complex geological history of its parent body and represents material that doesn't conform to known achondrite groups.
Petrography and mineralogy
MetBull reports the rock is predominantly equant augite grains with an average grain size of ~1.5 mm, accompanied by minor enstatite and accessory phases including Cr-troilite, daubreelite, alabandite, and an Mn-Fe oxide. Some secondary calcite veins are present.
Mineral chemistry (high-level)
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Augite: Fs ~0.0–0.1, Wo ~39.4–42.3
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Enstatite: Fs ~0.1, Wo ~0.9–3.6
Oxygen isotopes
MetBull lists two analyses (acid-washed subsamples) with Δ¹⁷O values -0.034 and -0.009‰ (linearized; TFL slope 0.528), supporting extraterrestrial classification.
Context within rare achondrites
MetBull notes KG 022 is texturally and mineralogically very similar to NWA 15915, but differs in exsolution behavior and other characteristics. It also notes possible affinities to aubrites, while emphasizing the key difference: KG 022 is dominated by nearly Fe-free augite, not enstatite.
Shock and weathering (MetBull)
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Shock stage: low
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Weathering grade: low
Each specimen includes a certificate of authenticity and is ideal for serious collectors, researchers, or museum displays seeking rare and scientifically significant meteorite material.