Table 1 Results of the RQPA of EAC-1A, compared with the results of Schleppi et al.

From: Material aspects of sintering of EAC-1A lunar regolith simulant

Mineral

Composition

Abundance (%)

Abundance according to Schleppi et al.18 (%)

Plagioclase

(Ca,Na)(Al,Si)4O8

28.3

27.2b

Diopside/augite

(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)2O6

28.4

35.5c

Forsterite

(Mg,Fe)2SiO4

29.3

13.3

Biotite

K(Mg,Fe2+,Al)3(Al,Si)4O10(OH,F)2

11.3

7.6d

Unidentified minerala

 

n.a

Analcime

NaAlSi2O6·H2O

2.9

–

Ilmenite

FeTiO3

Minor/trace

2.0e

Glass

 

–

14.4

  1. aUnidentified mineral(s) at d = 14.4 Å (2θ = 6.1°), d = 8.7 Å (2θ = 10.2°) and d = 7.2 Å (2θ = 6.0°); likely clay mineral(s) and/or zeolite.
  2. bFeldspars combined; viz., plagioclase (Ca,Na)(Al,Si)4O8: 13.8%, and K-feldspar KAlSi3O8: 13.4%.
  3. cPyroxenes combined, including diopside, augite etc.
  4. dMica/biotite and “alteration” combined, including annite KFe2+3AlSi3O10(OH,F)2, phlogopite KMg3AlSi3O10(F,OH)2, and chlorite.
  5. e“Oxide minerals”, including ilmenite.
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