Pallasites
Name
*click on the Name for more information
Structure Class
Stony-Iron
Chemical Class
Pallasite, PMG
Country
Year found
1881
Mass
180 kg
[Museum Collection]
(1) 112g
• 分類 ：パラサイト • 発見隕石：1881年 • 落下国 ：アメリカ • 発見総重量 ：180 kg • 同分類の隕石数：70個 • 地球のような層構造を持った天体の中心核とマントルとの境界から飛来した 【 監修 北海道大学 圦本尚義 】 • Pallasite, PMG • Found 1881 • USA • Found 180 kg • one of 70 meteorites in this classification • This came from the boundary between central core and rock mantle of an earth-like layered object. 【Supervised by Prof. Hisayoshi Yurimoto, Hokkaido University】
Name
*click on the Name for more information
Structure Class
Stony-Iron
Chemical Class
Pallasite, PMG
Country
Year found
1909
Mass
52.6 kg
[Museum Collection]
(1) 10.6g
This is 1 of 59 approved meteorites (plus 1 unapproved name) classified as Pallasite, PMG. Search for specimens in the Smithsonian Institution collection (U.S.): Search for this meteorite in the Natural History Museum collection (U.K.):
Name
*click on the Name for more information
Structure Class
Stony-Iron
Chemical Class
Pallasite, PMG
Country
Year found
1810
Mass
823 kg
[Museum Collection]
(1) 188.8g
• 分類：パラサイト • 発見隕石：1810年 • 落下国：ベラルーシ • 発見総重 量：823 kg • 同分類の隕石数：70個 • 地球のような層構造を持った天体の中心核と マントルとの境界から飛来した 【 監修 北海道大学 圦本尚義 】 • Pallasite, PMG • Found 1810 • Belarus • Found 823 kg • one of 70 meteorites in this classification • This came from the boundary between central core and rock mantle of an earth-like layered object. 【Supervised by Prof. Hisayoshi Yurimoto, Hokkaido University】
Name
*click on the Name for more information
Structure Class
Stony-Iron
Chemical Class
Pallasite, PMG-an
Country
Year found
1884
Mass
148 kg
[Museum Collection]
(1) 23g (2) 27g
This is 1 of 16 approved meteorites classified as Pallasite, PMG-an. Search for specimens in the Smithsonian Institution collection (U.S.): Search for this meteorite in the Natural History Museum collection (U.K.): Never published in the Meteoritical Bulletin
Name
*click on the Name for more information
Structure Class
Stony-Iron
Chemical Class
Pallasite, PMG
Country
Year found
2000
Mass
1 t
[Museum Collection]
(1) 122g (2)105g (3) 85g
• 分類：パラサイト • 発見隕石：2000年 • 落下国：中国 • 発見総重量：1トン • 同分類の隕石数：71個 • 地球のような層構造を持った天体の中心核と マントルとの境界から飛来した。 • 展示中のセイムチャン隕石と同種。 【 監修 北海道大学 圦本尚義 】 • Pallasite, PMG • Found 2000 • China • Found 1 ton • one of 71 meteorites in this classification • This came from the boundary between central core and rock mantle of an earth-like layered object. • This is similar to Seymchan meteorite on display. 【Supervised by Prof. Hisayoshi Yurimoto, Hokkaido University】
Name
*click on the Name for more information
Structure Class
Stony-Iron
Chemical Class
Pallasite, ungrouped
Country
Year found
2021
Mass
10 kg
[Museum Collection]
(1) 53.0g
History: Purchased in 2021 by Mark Lyon from a meteorite dealer in Mauritania. Physical characteristics: Five identically appearing masses (total 10 kg) found together. Saw cut surface shows angular cm-sized dark-orange olivine grains set in metal. There are also smaller scattered olivines set in the host metal. The modal abundances are approximately 60% metal, 38% olivine, 2% troilite. Petrography: (A. Ross and C. Agee, UNM) Electron microprobe analysis and imaging reveal the presence of magnesian olivine, kamacite, and minor troilite. No other phases were detected with both EPMA and SEM searches. Geochemistry: (A. Ross, UNM) Olivine Fa7.7±0, Fe/Mn=24±1, n=6; metal Fe=95.4±0.4, Ni=5.2±0.1 wt%, n=5. Oxygen isotopes (K. Ziegler, UNM): 3 acid-washed fragments analyzed by laser fluorination gave δ18O= 2.820, 3.390, 3.386; δ17O= 0.338, 0.440, 0.650; Δ17O= -1.151, -1.350, -1.138 (linearized, all per mil, TFL slope=0.528). Classification: Pallasite, ungrouped. This is a unique pallasite type both in terms of olivine composition and oxygen isotopes. Along with Milton, this meteorite is the only other ungrouped that is not a pyroxene pallasite, however Milton and this meteorite are not paired and do not have olivine compositions and oxygen isotopes that are similar. Specimens: 25.7 g on deposit at UNM, Mark Lyon holds the main masses.
Name
*click on the Name for more information
Structure Class
Stony-Iron
Chemical Class
Pallasite, PMG-an
Country
Year found
1924
Mass
2.3 t
This is 1 of 16 approved meteorites classified as Pallasite, PMG-an. Search for specimens in the Smithsonian Institution collection (U.S.): Search for this meteorite in the Natural History Museum collection (U.K.): Search for this meteorite in the Museo Nazionale dell'Antartide database (Siena, Italy): Never published in the Meteoritical Bulletin
Name
*click on the Name for more information
Structure Class
Stony-Iron
Chemical Class
Pallasite, PMG
Country
Year found
1822
Mass
920 kg
[Museum Collection]
(1) 19.7g (2) 13.206g (3) 9.267g (4)8.754g
(5) 3.892g (6) 2.1g (7) 1.4g (8) 1.3g
(9) 1.3g (10) 1.2g (11) 1.0g (12) 0.9g
(13) 42.3g (14) 21.6g
• 分類：パラサイト • 発見隕石：1822年 • 落下国：チリ • 発見総重量：920 kg • 同分類の隕石数：71個 • 地球のような層構造を持った天体の中心核と マントルとの境界から飛来した。 【 監修 北海道大学 圦本尚義 】 • Pallasite, PMG • Found 1822 • Chile • Found 920 kg • one of 71 meteorites in this classification • This came from the boundary between central core and rock mantle of an earth-like layered object. 【Supervised by Prof. Hisayoshi Yurimoto, Hokkaido University】
Name
*click on the Name for more information
Structure Class
Stony-Iron
Chemical Class
Pallasite, PMG
Country
Year found
2008
Mass
499.5 kg
[Museum Collection]
(1) 52.5g
BONHAMS Auction 7 DEC 2021 Lot#2368
BONHAMS Auction 7 DEC 2021 Lot#2368
History: Anonymous finders recovered the meteorite specimen in 2008 during excavation activities in muddy ground. Physical characteristics: The original mass of the meteorite boulder was 499.5 kg. It is spherically shaped with the shortest and longest diameter of 70 cm and 85 cm, respectively. The crust is weathered and rusty. Petrography: The interior shows a homogeneous distribution of coarse-grained rounded olivine grains (6 to 12 mm). The groundmass is composed of secondary magnetite, nickel sulfide and sulfate (nickel hexahydrite), and primary schreibersite. Modal abundances are olivine (64 vol%), magnetite (23 vol%), nickel sulfide and sulfate (8 vol%), and schreibersite (5 vol%). Geochemistry: Olivines are homogeneous in composition (Fa12-13). Sulfide is composed of NiS and may represent a replacement product of troilite, while magnetite (Fe3O4) is a weathering product of primary FeNi phases. Schreibersite has the composition (Fe1.85Ni1.15)P. Replicate analyses of oxygen isotopes were made on acid-washed samples by laser fluorination at UGött (A. Pack): δ17O (SMOW) 1.862, 1.367, 1.380; δ18O (SMOW) 3.820, 3.011, 3.160; and Δ17O -0.130 -0.200, -0.280 (all per mil). Classification: Main group pallasite, extensively weathered, fresh olivine Specimens: Type specimens of 230 g and 20 g with surface areas of 190 cm2 and 20 cm2, respectively, and one thin section are on deposit at UJena. An anonymous owner holds the main mass.
Name
*click on the Name for more information
Structure Class
Stony-Iron
Chemical Class
Pallasite, PMG
Country
Year found
1868
Mass
159 kg
[Museum Collection]
(1) 81g
This is 1 of 56 approved meteorites (plus 1 unapproved name) classified as Pallasite, PMG. Search for specimens in the Smithsonian Institution collection (U.S.): Search for this meteorite in the Natural History Museum collection (U.K.): Never published in the Meteoritical Bulletin
Name
*click on the Name for more information
Structure Class
Stony-Iron
Chemical Class
Pallasite, PMG
Country
Year found
1984
Mass
59 kg
[Museum Collection]
(1) 45.1g
• 分類 ：パラサイト • 発見隕石：1984年 • 落下国 ：ブラジル • 発見総重量 ：59 kg • 同分類の隕石数：70個 • 地球のような層構造を持った天体の中心核とマントルとの境界から飛来した。 【 監修 北海道大学 圦本尚義 】 • Pallasite, PMG • Found 1984 • Brazil • Found 59 kg • one of 70 meteorites in this classification • This came from the boundary between central core and rock mantle of an earth-like layered object. 【Supervised by Prof. Hisayoshi Yurimoto, Hokkaido University】
Name
*click on the Name for more information
Structure Class
Stony-Iron
Chemical Class
Pallasite
Country
Year found
2016
Mass
2.8 t
[Museum Collection]
(1) 7215g (2) 888g (3) 10410g (4) 4810g
BONHAMS Auction 7 DEC 2021 Lot#2371
BONHAMS Auction 7 DEC 2021 Lot#2373
BONHAMS Auction 7 DEC 2021 Lot#2371
• 分類 ：パラサイト • 発見隕石：2016年 • 落下国 ：ケニア • 発見総重量 ：2.8トン • 同分類の隕石数：87個 • 地球のような層構造を持った天体の中心核とマントルとの境界から飛来した。 【 監修 北海道大学 圦本尚義 】 • Pallasite • Found 2016 • Kenya • Found 2.8 ton • one of 87 meteorites in this classification • This came from the boundary between central core and rock mantle of an earth-like layered object. 【Supervised by Prof. Hisayoshi Yurimoto, Hokkaido University】
Name
*click on the Name for more information
Structure Class
Stony-Iron
Chemical Class
Pallasite, PMG
Country
Year found
1967
Mass
323.3 kg
[Museum Collection]
(1)26.0kg (2)1.914kg (3)2.322kg (4)322.8g
(5)461.9g (6)163.5g (7)155.7g (8)563g
(9)226.8g (10)139.9g (11)115.7g (12)64g
(13)61g (14)38g (15)35.2g (16)20.6g
(17)19.8g (18)17.5g (19)14.6g (20)14.4g
(21)14.3g (22)13.6g (23)13.3g (24)11.3g
(25)11.2g (26)10.4g (27)10.1g (28)10g
(29)10g (30)9.9g (31)8.7g (32)8.1g
(33)7.9g (34)7.6g (35)12.9g (36)12.8g
(37)11.4g (38)8.5g (39)6.1g (40)5.7g
(41)4.5g (42)3.0g (43)7.46g
• 分類 ：パラサイト • 発見隕石：1967年 • 落下国 ：ロシア • 発見総重量 ：323 kg • 同分類の隕石数：70個 • 地球のような層構造を持った天体の中心核とマントルとの境界から飛来した。 【 監修 北海道大学 圦本尚義 】 • Pallasite, PMG • Found 1967 • Russia • Found 323 kg • one of 70 meteorites in this classification • This came from the boundary between central core and rock mantle of an earth-like layered object. 【Supervised by Prof. Hisayoshi Yurimoto, Hokkaido University】
Name
*click on the Name for more information
Structure Class
Stony-Iron
Chemical Class
Pallasite, PMG-an
Country
Year found
1931
Mass
67.6 kg
[Museum Collection]
(1) 228.5g
This is 1 of 16 approved meteorites classified as Pallasite, PMG-an. Search for specimens in the Smithsonian Institution collection (U.S.): Search for this meteorite in the Natural History Museum collection (U.K.): Never published in the Meteoritical Bulletin
Name
*click on the Name for more information
Structure Class
Stony-Iron
Chemical Class
Pallasite
Country
Year found
2009
Mass
1100 g
[Museum Collection]
(1) 106.58g
This is 1 of 78 approved meteorites classified as Pallasite. Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
Name
*click on the Name for more information
Structure Class
Stony-Iron
Chemical Class
Pallasite, PMG
Country
Year found
2021
Mass
5.26 kg
[Museum Collection]
(1) 54.9g
History: Robert Cucchiara and Ruben Garcia purchased several kilos of this material from Adam Aaronson at the April gem show in Tucson 2021. Physical characteristics: The meteorite consists of nine pieces: 1710, 1313, 962, 411, 376, 180, 148, 99, and 60 g. The surface is irregular, with visible cm-scale olivine crystals. Terrestrial alteration is evident on the surface and along grain boundaries extending into the interior. Petrography: (C. Herd and P. Hill, UAb) Optical examination of polished slices show angular to subrounded olivine grains ranging from sub-mm to cm in size irregularly distributed in a homogenous metal phase. Sulfide inclusions were noted but not analyzed. Standfieldite was identified by EDS during electron microprobe examination. Geochemistry: (C. Herd and A. Locock, UAb) Data obtained by EMP examination of carbon-coated polished section: Olivine Fa10.8±0.1 (n=17). ICP-MS data obtained from metallic portion, using sample of North Chile (Filomena) as standard (C. Herd, P. Hill, and S. DuFrane UAb): Ni = 10.2, Co = 0.366 (both wt%); Ir = 0.04, Ga = 11.2, As = 10, Sb = 0.16, Ru = 0.6, Pt = 1.1, Cu = 117, Au = 0.37 (all μg/g). W concentration was below detection (