Table 1 Electron microprobe analyses (wt% of elements with their standard deviations in parenthesis) and atomic ratios of metal phases in 126A.

From: Collisions in outer space produced an icosahedral phase in the Khatyrka meteorite never observed previously in the laboratory

Phase

n

Al

Fe

Cu

Ni

Si

Mg

Ca

Cr

Total

khatyrkite

16

47.9(2)

0.5(1)

51.2(5)

b.d.l.

b.d.l.

b.d.l.

b.d.l.

b.d.l.

99.60

9

48.0(3)

0.7(2)

51.7(5)

b.d.l.

b.d.l.

b.d.l.

b.d.l.

b.d.l.

100.40

13

47.7(3)

0.6(1)

51.3(5)

b.d.l.

b.d.l.

b.d.l.

b.d.l.

b.d.l.

99.60

9

48.0(4)

1.04(6)

51.0(5)

b.d.l.

0.06(2)

b.d.l.

b.d.l.

b.d.l.

100.10

5

48.9(5)

1.4(1)

50.1(8)

b.d.l.

b.d.l.

b.d.l.

b.d.l.

b.d.l.

100.40

8

48.2(2)

0.9(1)

51.0(5)

b.d.l.

b.d.l.

b.d.l.

b.d.l.

b.d.l.

100.10

11

48.1(4)

1.3(2)

50.8(9)

b.d.l.

b.d.l.

b.d.l.

0.03(2)

b.d.l.

100.23

2

47.8(2)

2.68(6)

49.31(3)

b.d.l.

0.16(4)

b.d.l.

0.03(2)

0.07(3)

100.05

2

48.7(5)

2.10(3)

49.94(9)

b.d.l.

0.09(5)

0.1(1)

b.d.l.

b.d.l.

100.93

2

48.42(5)

2.16(7)

49.4(9)

b.d.l.

0.10(2)

b.d.l.

0.05(2)

b.d.l.

100.13

2

47.2(1)

1.6(2)

50.20(3)

b.d.l.

0.2(1)

b.d.l.

b.d.l.

b.d.l.

99.20

β-phase

3

38.7(2)

1.5(1)

59.5(6)

b.d.l.

b.d.l.

b.d.l.

0.03(2)

b.d.l.

99.73

3

38.3(1)

2.7(3)

57.8(5)

b.d.l.

b.d.l.

b.d.l.

b.d.l.

0.05(3)

98.85

2

35.9(4)

4.23(4)

61.2(4)

b.d.l.

b.d.l.

b.d.l.

b.d.l.

0.07(2)

101.40

3

33.92(8)

3.1(1)

62.7(6)

b.d.l.

b.d.l.

b.d.l.

b.d.l.

0.05(1)

99.77

2

35.80(5)

2.7(3)

60.8(1)

b.d.l.

b.d.l.

b.d.l.

0.04(1)

b.d.l.

99.34

2

36.1(3)

2.73(9)

60.8(9)

b.d.l.

b.d.l.

b.d.l.

b.d.l.

b.d.l.

99.63

λ-phase

4

55.0(4)

30.4(6)

14.2(3)

b.d.l.

0.30(1)

b.d.l.

0.03(1)

0.16(3)

100.09

i-phase I

3

43.2(1)

15.0(5)

41.0(4)

b.d.l.

0.14(6)

b.d.l.

0.04(2)

0.14(1)

99.52

i-phase II

3

42.0(7)

9.4(9)

47.3(9)

b.d.l.

0.08(5)

0.04(6)

b.d.l.

0.09(3)

98.91

i-phase II

9

40.3(5)

9.2(4)

48.7(6)

b.d.l.

0.06(3)

0.06(6)

0.04(1)

0.11(2)

98.47

Formulae on the basis of 100 atoms

khatyrkite

 

68.54

0.35

31.11

100.00

 

68.29

0.48

31.23

100.00

 

68.37

0.42

31.21

100.00

 

68.36

0.72

30.84

0.08

100.00

 

69.02

0.95

30.03

100.00

 

68.57

0.62

30.81

100.00

 

68.40

0.89

30.68

0.03

100.00

 

68.05

1.84

29.81

0.22

0.03

0.05

100.00

 

68.47

1.43

29.82

0.12

0.16

100.00

 

68.61

1.48

29.72

0.14

0.05

100.00

 

67.93

1.11

30.68

0.28

100.00

β-phase

 

59.81

1.12

39.04

0.03

100.00

 

59.68

2.04

38.24

0.04

100.00

 

56.12

3.20

40.62

0.06

100.00

 

54.65

2.42

42.89

0.04

100.00

 

56.87

2.08

41.01

0.04

100.00

 

57.09

2.09

40.82

100.00

λ-phase

 

72.27

19.29

7.92

0.38

0.03

0.11

100.00

i-phase I

 

63.44

10.64

25.57

0.20

0.04

0.11

100.00

i-phase II

 

62.87

6.80

30.07

0.12

0.07

0.07

100.00

i-phase II

 

61.40

6.77

31.51

0.09

0.10

0.04

0.09

100.00

  1. n: number of analyses included in average, n.a.: not analyzed, b.d.l.: below detection limits, 0.07 wt% Ni, 0.05% Si, 0.04% Mg, 0.03% Ca, 0.05% Cr.