Apollo 12 Soil Samples

Incomplete. I’m putting this task on hold until I figure out how useful it really is.

12001 (Reference soil sample)
- Samples 12001 and 12003 were collected as the same sample. Sample 12001 is the < 1 mm fraction, while Sample 12003 is > 1 mm fraction and some friable material found at the bottom of the Apollo Lunar Sample Return Container (ALSRC)(1).
- Collected about 35 meters from the Lunar Module (1). Returned under vacuum in the ALSRC (1).
- Mass = 2216 grams (1).
- Average grain size = 73 microns (1). Another researcher has the average grain size as 60 micron (1). Average grain size for 12001 and 12003 combined is 65 microns (1).
- Maturity index (I_s/FeO) = 56 (1)
- Mineralogical Mode (Frondel et al. 1971)(1)
  - Olivine + Pyroxene = 61.8%
  - Plagioclase = 15.7%
  - Opaques = 9.5%
  - Glass, angular = 10.8%
  - Glass, rounded = 2%
  - Silica = 0.1%
- Mineralogical Mode (Labotka et al. 1980)(1)
  - 90-20 micron
    - Lithic clasts = 2.9
    - Agglutinates = 21.3
    - Pyroxene = 27.5
    - Plagioclase = 17.4
    - Olivine = 5.3
    - Silica = 0.8
    - Ilmenite = 1.2
    - Mare glass = 18.4
    - Highland glass = 4.7
  - 20-10 micron
    - Agglutinates = 4.7
    - Pyroxene = 31
    - Plagioclase = 18
    - Olivine = 10.2
    - Silica = 1.5
    - Ilmenite = 2.7
    - Mare glass = 24.1
    - Highland glass = 6.4
- Modal Minerology (Simon et al. 1981)(1)
  - Lithic Fragments
    - Mare Basalt = 12.9
    - Highland Component
      - ANT = 1
      - LMB = 0.1
      - Feld. Basalt = 0.5
      - RNB/POIK = 2.3
    - Fused Soil Component
      - DMB = 9.5
      - Agglutinate = 40.1 (mostly in the coarse grain fraction as agglutinates become unrecognizable in the finer fractions).
    - Mineral Fragments
      - Mafic = 18.3
      - Plag = 3.9
      - Opaque = 0.2
    - Glass Fragments
      - Orange/Black = 0.5
      - Yellow/Green = 2.8
      - Brown = 1.5
      - Clear = 1
    - Misc
      - Devitrified glass = 5
      - Others = 0.5
- 0.06% (by weight) metallic iron was attracted to a hand magnet (from a 10 gram split of Sample 12001)(1).
- Chemistry (3 different researchers)
  - Carbon = 120 ppm, 102 ppm, 96 ppm (1).
  - Nitrogen = 110 ppm, 54 ppm, 78(1)

- Photos
  - AS12-47-6960

12003 (Reference soil sample)
- Samples 12001 and 12003 were collected as the same sample. Sample 12001 is the < 1 mm fraction, while Sample 12003 is > 1 mm fraction and some friable material found at the bottom of the Apollo Lunar Sample Return Container (ALSRC)(1).
- Collected about 35 meters from the Lunar Module (1). Returned under vacuum in the ALSRC (1).
- Split off during initial processing and studied under nitrogen (1).
- Collected about 35 meters from the Lunar Module (1)
- Mass = 300 grams (1).
- Average grain size = 66 microns (1).
- Maturity index (I_s/FeO) = 56 (1)
- Mineralogical Mode (Frondel et al. 1971)(1)
  - Olivine + Pyroxene = 63.4%
  - Plagioclase = 17.2%
  - Opaques = 9.6%
  - Glass, angular = 6.1%
  - Glass, rounded = 3.5%
  - Silica = 0.3%
- Chemistry
  - Carbon = 180 ppm (1).
  - Nitrogen = 85 ppm (1).
- Photos
  - AS12-47-6960