On Offer: 4.0 gram Vi ales partial slice - L6 Chondrite Meteorite

Description: A 4.0g partial slice of Vi ales L6 ordinary chondrite with some crust. This specimen displays amazing shock veins and brecciated texture.

Fell: Feb 01, 2019

Location: Pinar del Rio, Vi ales Valley, Cuba

What you get: 4.0 gram Vi ales meteorite specimen as shown above, membrane display box, and certificate of authenticity.

We offer a 100% no questions asked 30 day .



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Vi alesBasic informationName: Vi ales
This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: Yes, confirmed fall
Year fell: 2019
Country: Cuba
Mass: 50 kg
Classification
history:Recommended: L6 [explanation]
This is 1 of 11330 approved meteorites (plus 6 unapproved names) classified as L6. [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments:Approved 27 Mar 2019Writeup
Writeup from MB 108:

Vi ales 22 37.17 N, 83 44.57 W

Pinar del Rio, Cuba

Fall: 2019 Feb 01

Classification: Ordinary chondrite (L6)

History: A bright bolide accompanied by loud sonic booms flew across the province of Pinar Del Rio, Cuba, at 1:17 pm local time (18:17:10 UTC) on 1 February 2019. A long smoke trail was also observed. The residents thought a plane had crashed, as they heard explosions and then ground rumbling lasting 15 to 20 s. A meteorite shower fell on Vinales Valley, a national monument since 1978 and a UNESCO world heritage site. The area is covered by a forest and fields. The first and some of the largest stones were collected near the monument "Mural of Prehistory" by artist Leovigildo Gonzalez Morillo. Others were discovered in and around Vi ales and throughout the Vi ales Valley. Some of the meteorite individuals penetrated the ground, one of them broke through an asphalt road, and many were recovered from rooftops.

Physical characteristics: Hundreds of individual samples were collected by the local residents. The stones are covered by black fusion crust with reddish smears of a laterite clay. The substance of the meteorite of light gray color can be seen in small areas of the broken crust. The masses of stones are in a range 2 to 1100 g. In total, about 50-100 kg of the meteorite were collected.

Petrography: The interior is light-colored; silicates are transected by dark, pseudotachylite-like shock veins. The rock is highly recrystallized; chondrule margins are difficult to discern. Recognizable chondrule types include POP, PO and BO, ranging up to ~1 mm in diameter. The meteorite samples contain the several vol% of black inclusions of melt rock. Metal grains range in size up to about 700 m. The rock exhibits moderate silicate darkening. Chromite grains are moderately to extensively fractured. Some troilite grains and some kamacite grains are polycrystalline. A few kamacite grains contain small rounded grains of troilite within them. Metallic Cu was not observed. There are several small chromite-plagioclase assemblages and some olivine grains contain small chromite veinlets. The shock veins range to more than 1 cm in length and are typically 20 m to 150 m wide. The veins contain major silicate and small blebs of metallic Fe-Ni, and to a lesser extent, troilite; these opaque blebs are typically 1-3 m in diameter. Also present in the veins are cellular metal-troilite veinlets 10-30 m in length. Elongated aggregates of chromite occur alongside portions of some shock veins. Slabs of Vi ales show intersecting dark shock veins, anastomosing veins, and a few quasi-circular melt concentrations where veins intersect. Coarse metal grains are heterogeneously distributed in some samples some regions of these samples have abundant coarse metal; other regions have none. Near the dark fusion crust, numerous thin veinlets of troilite surround and penetrate fractures within silicate grains. Magnetic susceptibility (J. Gattacceca, CEREGE): log ( 10 -9 m 3/kg) = 4.93 measured on a 18 g sample.

Geochemistry: Mineral compositions and geochemistry: (Borisovsky S. E., IGEM; A. Rubin, UCLA and L. Garvie, ASU) Olivine, Fa 24.7 0.3 (N=15, IGEM), Fa 24.6 0.4 (n=23, UCLA); low-Ca pyroxene, Fs 21.0 0.4Wo 1.5 0.3 (N=21, UCLA), Fs 20.2 0.3Wo 1.6 0.2 (N=15, IGEM); other minerals characterized by UCLA and ASU include diopside (Fs 8.1 0.1Wo 44.8 0.6; n=5), plagioclase (which has an average size of ~80 m; Ab 90.0 0.5Or 1.8 1.2; n=14), chromite, kamacite (6.6 0.6 wt.% Ni; 0.89 0.12 wt.% Co), troilite (containing 0.7-0.42 wt.% Ni), taenite, and accessory tetrataenite, merrillite and chlorapatite. Oxygen isotopes (K. Ziegler, UNM): 18O=4.38, 4.55, 4.69; 17O=3.39, 3.50, 3.57; 17O=1.08, 1.09, 1.09 (all ).

Classification: (Dr. C. Efr n Jaimez Salgado; IGA, Havana, Cuba; C. A. Lorenz, Vernad.) Ordinary chondrite (L6), Weathering grade is W0, Shock stage is S3 (Vernad) or S4 (UCLA).

Specimens: The individual sample of 148 g and one transparent-polished section are deposited in Vernad; 22 g, UCLA; 18 g, CEREGE; 8 individual samples of total mass 2.31 kg are on deposit in Institute of Geophysics and Astronomy (IGA), Havana, Cuba. Large specimen masses are also held by John Higgins, MFarmer, and DPitt.

Data from:
MB108
Table 0
Line 0:State/Prov/County:Pinar del RioOrigin or pseudonym:Vinales ValleyDate:2019 Feb 01Latitude:22 37.17NLongitude:83 44.57WMass (g):50000Pieces:manyClass:L6Shock stage:S3Weathering grade:W0Fayalite (mol%):24.7 0.3 (N=15)Ferrosilite (mol%):20.2 0.3 (N=15)Wollastonite (mol%):1.6 0.2 (N=15)Magnetic suscept.:4.93Classifier:Dr. C. Efr n Jaimez Salgado, IGA; C. A. Lorenz, Vernad; A. Rubin, UCLA; L. Garvie, ASUType spec mass (g):148Type spec location:VernadMain mass:Institute of Geophysics and Astronomy, Havana, CubaComments:Submitted by Lorenz C. A., Vernad
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Product Attributes:

Country/Region Of Manufacture: Unknown

New Fall: Fresh crust

Weight (lbs.): 0.50 lb

Length (in.): 12

Width (in.): 10

Height (in.): 3