Interiors & Decorations

Jewellery & Precious Stones

Watches, Pens & Lighters

Fashion

Coins & Stamps

Comics & Animation

Classic Cars, Motorcycles & Automobilia

Wine, Whisky & Spirits

Asian & Tribal Art

Trading Cards

Toys & Models

Archaeology & Natural History

Sports

Music, Movies & Cameras

Books & Historical Memorabilia

The never-ending discovery of Meteorites, brought to you by {name}

Francesco Moser

Meteorite type CLASS / OFFICIAL NAME or NUMBER (Meteoritical Bulletin Database): NWA 17660 - HED Achondrite - Eucrite Polymict

FALL/FIND LOCATION: North West Africa

WEIGHT: 153,97g half stone

Size: 7cm x 4cm x 3,9cm

Meteoritical Bulletin Database entry: NWA 17660 Eucrite Polymict

Writeup from Meteoritical Bulletin Database:

Northwest Africa 17660 (NWA 17660)

(Northwest Africa)

Purchased: 2024 Sep

Classification: HED achondrite (Eucrite, polymict)

History: Purchased by Juan Aviles Poblador in September 2024 from a dealer in Erfoud, Morocco.

Petrography: (A. Irving, UWS, and P. Carpenter, WUSL) Complex breccia composed of angular mineral clasts, some fine- to medium-grained lithic clasts with subophitic to intergranular textures, and ~10 vol.% distributed rounded lithic breccia clasts in a fine grained fragmental matrix. The major minerals are exsolved pigeonite, unexsolved pigeonite, calcic plagioclase, subcalcic augite and augite. Minor constituents are diogenitic orthopyroxene (~5 vol.%), silica polymorph, Ilmenite, low-Ti chromite, troilite, fayalite, merrillite, zircon and kamacite. The unusual rounded lithic breccia clasts consist of sparse angular fragments of many of those same mineral phases within an ultra-fine grained opaque to isotropic, microcrystalline to glassy, aluminous matrix (deep sepia brown in thin section), which may represent a quenched melt. Several thin cross-cutting shock melt veinlets are present in the studied thin section.

Geochemistry: Low-Ca pyroxene (Fs64.3Wo2.8; Fs55.5Wo3.3; FeO/MnO = 32-33, N = 2), pigeonite (Fs37.0-40.2Wo6.7-8.0, FeO/MnO = 31-34, N = 2), subcalcic augite (Fs34.3Wo31.9, FeO/MnO = 30), augite (Fs29.4Wo43.0, FeO/MnO = 35), diogenitic orthopyroxene (Fs29.8-31.3Wo4.9-4.4, FeO/MnO = 28-29, N = 2), plagioclase (An79.6-91.8Or1.4-0.2, N = 4), fayalite (Fa75.9-77.8, FeO/MnO = 43-44, N =2), matrix of (?)regolithic breccia clasts with aluminous subcalcic augite bulk composition (Fs43.5Wo29.0, FeO/MnO = 34, Al2O3 13.1 wt.%).

Classification: Eucrite (polymict breccia). This specimen is unusual because of its significant content of eucritic breccia clasts with a microcrystalline to glassy aluminous matrix, which may signify a regolithic component.

Specimens: 27.6 g including one polished thin section at UWB; remainder with Mr. Juan Aviles Poblador.

Observations:

The authenticity of this specimen is guaranteed and certified by me, the Geologist Juan A. Poblador, member of the Global Meteorite Association G0043 and International Meteorite Collectors Association IMCA 5681.

The fresh cut observed in the specimen is from where a sample was taken for classification and deposit in UWB. And also to make slices of the other half stone.

Scale cube: 1x1cm

Provenance chain: Im the main mass holder - Geologist Juan A. Poblador (Jurassic Dreams - Galactic Dreams Department).

All of our meteorites come with a Certificate of Authenticity. Every week, the issued Certificates of Authenticity are updated in our database verification system on our website. If you find that your certificate has not yet been updated, please contact us and we will update it immediately. 

The meteorite would have started its journey to Earth as a result of a massive meteor strike on the Vesta asteroid surface, likely creating huge craters. That initial strike had sufficient force to eject this and other rocks from the surface of the Vesta asteroid at escape velocity, leaving them to float freely in space. Eventually, this mass intersected with the Earth's own orbit where its surface was flash-heated to 2,800 degrees Fahrenheit on entry, then rapidly cooled in the frigid temperatures of Earth's upper atmosphere, before slowing to approximately 200 miles per hour on its final descent. This fall would have lit the Saharan sky up before hurtling down to its site of discovery.



North West Africa

"NWA 17660" Eucrite Polymict HED Achondrite Meteorite Half Stone 154g HED Achondrite - Eucrite Polymict - 154 g

Minerals & Meteorites

Reserve price

No reserve price

Buy now

Closing date

Sunday

today

Saturday

tomorrow

Friday

Tuesday

Monday

22 April

Budget

From

Location

Italy

Germany

The Netherlands

France

Spain

Lithuania

United Kingdom

Poland

Portugal

Czech Republic

Latvia

India

Belgium

Ireland

Türkiye

Hong Kong

Romania

Austria

Singapore

Switzerland

Cyprus

Estonia

Taiwan

Greece

Bulgaria

Dimensions

Height

Width

Depth

Object

Raw mineral

Metaphysical stones

Carved mineral

Amber

Necklace

Mineral cabochon

Meteorite

Bracelet

Pendant

Earrings

Ring

Nugget

2 piece jewellery set

Necklace with pendant

Carving

Gemstone cabochon

Chain

Brooch

Bangle

Collar necklace

Coral

Sea shell

3 piece jewellery set

Bead

Lunar meteorite

Country of origin

Brazil

Madagascar

Afghanistan

Ethiopia

Pakistan

China

Australia

Mexico

Uruguay

Morocco

South Africa

Myanmar

Tanzania

Congo

Indonesia

United States

DR Congo

Colombia

Dominican Republic

Material

Silver

Gold-plated

Yellow gold

Stone

Agate

Lapis Lazuli

Malachite

Gold

Brass

Metal

Gold leaf

Steel

.925 silver

Gender

Unisex

Women

Condition

As new - unused

Natural

Excellent condition - barely used with minimal signs of wear

Enhanced

Good condition

Good condition - used with some signs of wear

Excellent condition

Composed

Very good condition - slightly used with small signs of wear

Good condition - used with small signs of aging & blemishes

Hand carved

Restored

Excellent condition: barely used with minimal signs of wear

Manipulated

Very good

Fair condition - used with visible signs of wear

Vintage - used with visible signs of wear

Period

Paleogene, Eocene (56 - 33.9 million years)

2020+

Paleogene (66 - 23.03 million years)

Paleogene, Oligocene (33.9 - 23.03 million years)

2024

2026

1850-1900

Neogene (23.03 - 2.58 million years)

Cambrian (541 - 485.4 million years)

Hongzhi (1488-1505)

1970-1980

1990-2000

Quaternary, Holocene (0.0117 - 0 million years)

Neogene, Miocene (23.03 - 5.33 million years)

Cretaceous, Lower (145 - 100.5 million years)

Devonian, Lower (419.2 - 393.3 million years)

Ordovician (485.4 - 443.8 million years)

Mesozoic (251.9 - 66 million years)

2023

2000-2010

Pearl

Natural Pearl

Opal

Freshwater cultured pearl

Lapis lazuli

Akoya cultured pearl

Turquoise

Emerald

Amethyst

Aquamarine

Blood Coral

Ruby

Onyx

Sapphire

Tourmaline

Star Sapphire

Peridot

Jade

Quartz

Mixed gemstones

Topaz

Tanzanite

Garnet

Certification

No laboratory report

GEM-TECH Istituto Gemmologico

Antwerp Laboratory for Gemstone Testing (ALGT)

Non-CITES species

Anchor Cert

Masterstones

Fineness

18 kt.

Signature

Not signed

Minerals & Meteorites

This object is no longer available, but there’s still lots to explore

"NWA 17660" Eucrite Polymict HED Achondrite Meteorite Half Stone 154g HED Achondrite - Eucrite Polymict - 154 g

Popular in Minerals & Meteorites

5271 objects

Related collections