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Calama 082 					Location 228.50S, 6837.37W
Antofagasta, Chile
Found: 19 Oct 2019
Classification: HED achondrite (Diogenite, polymict)
History: The numerous fragments of meteorite were collected over 50 m2 by Mr. Ilya Chaplygin, who was searching for meteorites in the Atacama Desert.
Physical characteristics: Physical properties: The meteorite has more than 100 fragments. The largest pieces are 843, 476 and 350 g.
The stone of 843 g of mass has isometric shape; half of the stone surface is covered with dark-gray fusion crust.
Smaller fragments have not fusion crust and are dark gray in color. The brecciated texture is visible. Total mass of collected fragments is 2850 g.
Petrography: (Lorenz C. A., Vernad) the meteorite has brecciated texture. The poorly sorted breccia comprises of fragments of pyroxenites,
melt matrix breccias, minor fragments of pyroxene-feldspar rocks, recrystallized breccias and sulfide-silicate breccias settled in the fine-grained clastic matrix.
Main phase is pyroxene; feldspar is minor, olivine, chromite, silica, troilite and metal are rare. The melt matrix breccia fragments are up to 2 cm of size.
The rock is crossed by rare shock melt veins.
Geochemistry: Mineral compositions and geochemistry: (N. N. Kononkova, EMPA, Vernad; T. Kryachko, SEM, Technograd, Moscow):
Low-Ca pyroxene is En63.5-En79Wo1.4-4.5 (Fe/Mn=21.5-35.3); Olivine Fo62.3-66.3;
Pyroxene in eucritic fragments En37-62Wo2.4-4.4 with lamellae of En41.5-50.5Wo41.5-44.6. Feldspar An87.4Ab11.6-An91.9Ab8.1
Available samples
Complete slice 2.40 gram, $ 72
it is currenly listed click here to go to the eBay auction
Complete slice 2.84 gram, sold
Complete slice 3.20 gram, $ 96
it is currenly listed click here to go to the eBay auction
Complete slice 5.18 gram, $ 155
it is currenly listed click here to go to the eBay auction
Complete endcut 7.24 gram, sold
Complete slice 7.80 gram, $ 234
it is currenly listed click here to go to the eBay auction
Complete slice 9.48 gram, $ 285
it is currenly listed click here to go to the eBay auction
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