Sierra Gorda 009 G-Chondrite Meteorites for Sale
Location: Antofagasta, Chile 22°30.10’S, 69°08.20’W
Found: 2017
Classification: Ungrouped Fe,Ni-metal-rich chondrite with affinities to "G-chondrites"
Description: History: Three pieces (30 g, 70 g, and 140 g) of one meteorite were found in the the desert by Mr. T. V. Kryachko, Mr. M. E. Nepomiluev, and an anonymous finder. Physical characteristics: All samples of the meteorite have a brown fusion crust. Petrography: Meteorite has chondritic texture and consists of FeNi-metal (22 -25 vol%), chondrules, and their fragments; matrix is absent. Chondrules, up to 2 mm, are PP, BO, POP, SiO2-bearing and Al-rich with clear bounaries; PP chondrules are dominant; the main minerals are pyroxene, Fe,Ni-metal, olivine and sulfides (troilite and daubreelite), schreibersite; accessory minerals are silica, Mg-chromite, anorthite, spinel, graphite and PGE-metal nuggets. Geochemistry: Mineral compositions and geochemistry: Olivine: Fa0.47±0.10 (N=74), orthopyroxene: Fs1.42±0.39Wo0.88±0.63 (N=42), (N=42), FeO-rich Opx: Fs9.33-32.48Wo0.23-4.74; diopside: Fs1.34±0.57Wo47.32±2.31; plagioclase varies in composition: An 32.28-95.04Ab4.96-65.99; mesostasis in chondrules is enriched in K2O (up to 9.18 wt%) and TiO2 (up to 6.53 wt%); kamacite contains 5.07 wt% Ni, 0.43 wt% Co, Co/Ni - 0.09, Si and Cr are below detection (<0.03 wt%); taenite: Ni -32.3 wt%, Co - 0.25 wt% ; troilite is enriched in Cr (up to 2.4 wt%); MgO-chromite is almost pure MgO-end member. Oxygen isotopic compositions: (OU) δ17O 3.763, 3.736; δ18O 6.263, 6.169; Δ17O 0.506, 0.528 permil. Classification: ungrouped Fe,Ni-metal-rich chondrite with affinities to "G-chondrites" (GRO 95551 and NWA 5492, Weisberg et al., 2015) in texture and mineral chemistry. Oxygen isotopic compositions are between those of ordinary and enstatite chondrites.
Note: This meteorite remains an "ungrouped chondrite" in the Meteoritical Bulletin. For a meteorite to be given a separate classification the Nomenclature Committee requires five examples.
Link to Meteoritical Bulletin Database
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| #SG009-550 | #SG009-653 | #SG009-988 | #SG009-1-014 | About Scale: Each photo has a small one centimeter cube. That's a little less than a half inch on a side. The coin above is a US dime. |
| Weight: 0.550 gm | Weight: 0.653 gm | Weight: 0.988 gm | Weight: 1.014 gm | |
| Features: Part slice | Features: Part slice | Features: Part slice | Features: Part slice | |
| Price: $225 | $266 | $400 | $411 |
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| #SG009-1-156 | #SG009-1-296 | #SG009-1-362 | #SG009-1-473 | #SG009-2-410 |
| Weight: 1.156 gm | Weight: 1.269 gm | Weight: 1.362 gm | Weight: 1.473 gm | Weight: 2.410 gm |
| Features: Part slice | Features: Part slice | Features: Part slice | Features: Part slice | Features: Part slice |
| $467 | $523 | $550 | $594 | $969 |
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| #SG009-2-478 | #SG009-2-500 | #SG009-2-550 | #SG009-2-576 | #SG009-2-600 |
| Weight: 2.478 gm | Weight: 2.500 gm | Weight: 2.550 gm | Weight: 2.576 gm | Weight: 2.600 gm |
| Features: Part slice | Features: Part slice | Features: Part slice | Features: Part slice | Features: Part slice |
| $996 | $1005 | $1025 | $1035 | $1045 |
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| #SG009-3-139 | #SG009-3-230 | #SG009-3-745 | #SG009-4-763 | #SG009-6-482 |
| Weight: 3.139 gm | Weight: 3.230 gm | Weight: 3.745 gm | Weight: 4.763 gm | Weight: 6.482 gm |
| Features: Part slice | Features: Part slice | Features: Part slice | Features: End | Features: Part slice |
| $1261 | $1297 | $1503 | $1910 | $2400 |
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| #SG009-9-700 | #SG009-12-850 |
| Weight: 9.700 gm | Weight: 12.850 gm |
| Features: Slice | Features: End |
| $3885 | $5145 |
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