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Toconao 001 					Location 2258.68S, 6818.01W
Atacama, Antofagasta, Chile  
Find: 26 Mar 2019
Classification: Ordinary chondrite (LL3)

History: The meteorite was found by Mr. T. Kryachko on March 26, 2019, during a visual search for the meteorites in the Atacama desert.Physical characteristics: The meteorite shows numerous fragments of irregular shape. It is grayish-brown in color, with fusion crust is absent,and chondritic texture visible on the sample surface. Some of the fragments are patchy, covered by salts; some of them are fractured by sub-parallel fracture planes due to weathering processes.Petrography: (Lorenz C. A.) The meteorite is composed of chondrules of RP, RO, BP, BO, POP, PO and C types. Average chondrule diameter is 486290 m (N=280). Minor components are chondrule fragments, mineral grains and essentially fine-grained, non-transparent matrix. The chondrules are well outlined and have sharp contacts with the matrix. Troilite-rich chondrules are widely distributed, silica-rich chondrule was found. The main phases are olivine, pyroxene, troilite and glass; metal is accessory. Several chondrules contain Al-rich clinopyroxene. Olivine has sharp optical extinction. A network of thin veins of weathering products crosses the meteorite.Geochemistry: Mineral compositions and geochemistry: Olivine: Fa19.412.3 (N=70), PMD Fa is 63.2%, CaO 0.01-0.58 wt%; pyroxene Fs8.37.6Wo1.21.2 (N=30), clinopyroxene Fs15.46.1Wo23.48.2 (N=6); Al-rich clinopyroxene (wt%, N=22): Al2O3 13.74.3; TiO2 0.70.4; Cr2O3 0.30.3; sulfide is troilite; Total Fe of the meteorite is 19.7 wt% (XRF, T. G. Kuzmina, Vernad).Classification: Based on a texture, PMD of Fa olivine and total Fe abundance the meteorite is classified as ordinary chondrite of LL group, petrological type 3.
Available samples
Slice 3.97 gram, $ 20
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Slice 5.30gram, $ 26.50
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Thin section #1, $ 100
it is currenly listed click here to go to our eBay page
Thin section #2, $ 90
it is currenly listed click here to go to our eBay page
Thin section #3, $ 90
it is currenly listed click here to go to our eBay page
Thin section #o2, $ 90
it is currenly listed click here to go to our eBay page
Thin section #o3, $ 90
it is currenly listed click here to go to our eBay page
Thin section #o4, $ 90
it is currenly listed click here to go to our eBay page
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