Table 1 Experimental conditions.

From: Shock-transformation of whitlockite to merrillite and the implications for meteoritic phosphate

Experiment ID

GG092

GG093

GG094

GG095

Sample starting composition

<10 μm Batch 2 Whit.

Batch 4 Whit.+ copper

<10 μm Batch 4 Whit.

<10 μm Batch 4 Whit.

Whitlockite (%)

95

98

98

98

Merrillite (%)

5*

2

2

2

Peak shock pressure (GPa)

19±2

19±2

20.2±0.5

7.5±0.5

Fitted post shock composition

 Whitlockite (%)

11

64

88

89

 Merrillite (%)

42

36

12

11

 Unconfirmed† (%)

48

   
  1. Whit., Mg-whitlockite, synthetic. Batch 2 and Batch 4 refer to large batches of synthetic Mg-whitlockite.
  2. *Conservative upper estimate based on measured merrillite content of synthetic whitlockite14,16.
  3. †Previously unknown phase with a structure related to hurlbutite.
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