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Table 3 Representative analyses of opaque minerals (wt%)

From: An Almahata Sitta EL3 fragment: implications for the complex thermal history of enstatite chondrites

Phase Occurrence Mg Si P S Ca Ti Cr Mn Fe Co Ni Cu Zn Total
Keilite Chondrule 2.63 0.05 b.d 38.25 2.47 0.15 7.11 18.99 24.73 b.d b.d 0.10 0.44 94.92
Fe–Ni metal Chondrule b.d 0.45 0.42 b.d b.d b.d 0.06 b.d 90.13 0.33 7.48 b.d 0.08 98.94
Fe–Ni metal Isolated mineral b.d 0.42 0.41 b.d b.d b.d b.d b.d 90.38 0.29 7.59 0.06 b.d 99.27
Oldhamite Chondrule 0.61 0.20 0.04 40.90 53.28 b.d b.d 1.19 0.77 b.d b.d b.d b.d 96.99
Schreibersite Isolated mineral b.d 0.05 14.61 b.d b.d b.d 0.06 b.d 76.86 0.25 7.46 b.d b.d 99.30
Buseckite Chondrule 0.92 0.05 b.d 33.92 b.d b.d b.d 5.00 29.09 b.d b.d b.d 26.12 95.09
Troilite Chondrule 0.08 b.d b.d 36.40 b.d 0.32 2.41 1.33 57.58 b.d 0.20 0.07 b.d 98.40
Troilite Isolated mineral b.d b.d b.d 36.19 b.d 0.28 2.14 1.28 58.11 b.d 0.24 0.09 b.d 98.34
  1. b.d.: below detection limits (3 s), 0.03 for Mg, Si, P, Ti, and Ca, 0.05 for S, Co, Ni, Cr, Mn, Fe, Zn, and Cu
  2. The data of Fe–Ni metal and schreibersite as isolated mineral in this table are use to calculate geothermometries (see Text)