Lunar Rock and Mineral Characterization Database

Welcome to the online database of the Lunar Rock and Mineral Characterization Consortium (LRMCC).  The LRMCC conducted coordinated mineralogy, petrography, and reflectance spectroscopy analyses of a suite of lunar mare basalt samples.  The studied sample suite includes two low titanium samples collected from the Apollo 15 site (15058 and 15555) and two high titanium samples collected from the Apollo 17 site (70017 and 70035).  The LRMCC was allocated paired thin section and slab subsamples of each sample.  Thin sections were used for petrographic analyses (including modal abundances and chemical compositions of mineral phases), and the slab samples were used to prepare particulate mineral separates and bulk samples.  The compositions of the mineral separates were analyzed by electron microprobe analysis of grain mounts.  Petrographic analyses and mineral separate preparation were performed at the Planetary Geosciences Institute in the Department of Earth and Planetary Sciences at the University of Tennessee in Knoxville, TN.  The particulate samples were crushed and sieved to a series of standard grain sizes (“coarse grained” and “< 45 µm”) and analyzed with reflectance spectroscopy in the RELAB, in the Planetary Group of the Department of Geological Sciences at Brown University.

Full documentation of the samples, analytical procedures, and results can be found in:

Isaacson, P. J., A. Basu Sarbadhikari, C. M. Pieters, R. L. Klima, T. Hiroi, Y. Liu, and L. A. Taylor (2011), The Lunar Rock and Mineral Characterization Consortium: Deconstruction and Integrated Mineralogical, Petrologic, and Spectroscopic Analyses of Mare Basalts, Meteorit. Planet. Sci., 46, 228-251, doi:10.1111/j.1945-5100.2010.01148.x.

In case of any discrepancy between the descriptions and data provided in this database and those provided in the published manuscript, the published manuscript should be considered the document of record.  If you note any problems with this database, please contact Peter Isaacson (contact information can be found in the MaPS reference).  Please reference this manuscript when using data obtained from this database.

This database is intended to make the results of the LRMCC study available to the lunar and planetary research communities.  The reflectance spectroscopy results, chemical compositions of major mineral phases (in thin section and in mineral separates), and modal abundance results from thin section analyses are provided.  Note that one must use caution in using the modal abundance data in association with mineral separate and bulk sample reflectance spectra, as the mineral separates were prepared by hand based on optical differences, and do not correspond directly to the chemical composition-based distinctions of mineral phases used for modal analyses of the thin sections.  Please see the discussion in the given reference for details.

Funding for this work was provided by NASA LSI contract number NNA09DB34A as well as Cosmochemistry Program contract numbers NNG05GG15G and NNG05GG03G.

Spectral Reflectance Data

Spectral reflectance data are provided for mineral separates and the particulate bulk samples. Spectral reflectance data are provided in comma separated value (.csv) format.  Each spectrum is provided as a single file.  Each file contains one header line.  There are 4 columns for each file: Wavelength (nm), Wavelength (mm), Wavelength (cm-1), and Reflectance.  Some files may contain a fifth column, which records the variation observed during acquisition of the reflectance value at that wavelength.  Files are named with the following convention: RELABID_SampleNumber_SampleName_ParticleSize_WavelengthRange.csv.  “RELABID” refers to the ID code of the sample in the RELAB database.  Sample number will indicate one of the four samples (15058, 15555, 70017, 70035).  Sample name indicates the specific sample, as discussed in the Isaacson et al. reference.  ParticleSize indicates coarse or fine.  WavelengthRange indicates the wavelength coverage of the file, as described below:

Wavelength ranges:
BDR: Measured with the bidirectional reflectance spectrometer with a geometry of i = 30°, e = 0°.  Wavelength coverage of 280 nm – 2600 nm, 5 nm spectral sampling.
VIS: Measured with the same instrument and geometry as BDR.  Wavelength coverage of 400 – 600 nm, 0.5 nm spectral sampling.
UV: Measured with the same instrument and geometry as BDR.  Wavelength coverage of 280 – 400 nm, 1 nm spectral sampling.
Full: Measured with a combination of the bidirectional reflectance spectrometer at I = 0°, e = 30° and the FT-IR spectrometer.  FT-IR measurements are spliced with the BDR measurement, typically at a wavelength of ~2550 nm, to produce the composite “full wavelength” coverage extending to ~25 µm.  Spectral sampling is variable and not necessarily consistent between files.

The full dataset (all samples, all particle sizes, all wavelength ranges) can be downloaded (in .zip format) here.  Individual reflectance spectra can be found at thesubpages for each specific sample by clicking on the images below.

15058 X. Polars   15555 X. Polars   70017 X. Polars   70035 Trans.
15058
 
15555
 
70017
 
70035

Modal Abundance Data

Please read the Isaacson et al. reference carefully before using these modal abundance data.  Modal abundance data are provided in a single .csv table here, and are shown in html below.

Mineral Phase
15058, 248
15555, 971
70017, 541
70035, 193
Olivine
0.1
11.8
1.5
1.2
Orthopyroxene
3.7
0.3
---
---
Pigeonite
25.6
32.4
17.7
20.2
Augite
16.7
18.6
34.2
27.7
Fe-pyroxene
17.1
5.4
0.6
1.1
Plagioclase
30.1
27.3
25.7
30.1
Tridymite
3.5
0.8
1.6
0.9
Ilmenite
1.4
1.3
17.3
17.4
Chromite
<0.1
0.4
---
---
Ulvospinel
0.9
1
0.3
0.3
Armalcolite
---
---
0.1
0.1
Rutile
---
---
<0.1
---
Troilite/Metal
0.2
0.2
0.3
0.4
K-rich glass
0.5
0.4
0.6
0.6
Phosphates
0.1
0.1
0.1
<0.1
Total
99.9
100
100
100

 

Mineral Compositions

The mineral composition data are those presented in the supporting information for the Isaacson et al. MaPS reference, which can be found here.  The data are provided in .csv (by clicking on the table name links) and html format, and are organized in the same way as the tables in the supporting information of the Isaacson et al. MaPS reference.  Data are provided in oxide wt. %.  Table numbers from that reference (S1 – S8) are provided here for reference.  The footnotes for identification of mineral phases are not reproduced in the .csv versions. The full set of 8 tables can be downloaded in .zip format here.

 

Table S1: Compositional Data for 15058,248

Fe-Px1
Aug2
Pig3
Opx4
Ol5
Pl6
Ilm7
Usp8
Cr-Usp9
Chr10
SiO2
47.0
51.1
52.6
53.8
30
45.6
0.03
0.05
0.04
0.04
TiO2
1.02
0.79
0.35
0.28
---
---
52.1
33.2
27.6
2.94
Al2O3
1.02
2.73
1.33
1.04
0.04
33.3
0.08
1.69
3.08
12.4
V2O3
---
---
---
---
---
---
---
0.19
0.37
1.08
Cr2O3
0.05
0.95
0.77
0.84
0.03
---
---
1.32
11.06
50.3
MgO
1.24
14.8
21.2
25.2
2.31
0.19
0.08
0.09
1.27
6.19
CaO
12.9
16.3
4.8
2.39
0.61
18.6
---
<0.03
---
---
MnO
0.39
0.23
0.33
0.25
0.64
---
0.28
0.27
0.3
0.22
FeO
37.1
13.7
19.1
16.8
66.6
0.57
47.3
63.1
56.4
27.3
Na2O
0.05
<0.03
<0.03
<0.03
---
0.92
---
---
---
---
K2O
---
---
---
---
---
0.05
---
---
---
---
Total
100.7
100.6
100.4
100.6
100.2
99.3
99.9
99.9
100.1
100.4

1Pyroxferroite, 2Augite, 3Pigeonite, 4Orthopyroxene, 5Fayalitic Olivine, 6Plagioclase, 7Ilmenite, 8Ulvöspinel, 9Chromium Ulvöspinel, 10Chromite

Table S2: Compositional Data for 15555,971

Pig
Aug
Ol1
Ol2
Pl
Ilm
Usp
Usp
Chr13
Chr14
SiO2
53.4
47.2
30.5
35.7
45.8
0.03
0.22
0.08
0.07
0.12
TiO2
0.34
1.39
---
---
---
51.9
29.7
20.8
4.23
3.94
Al2O3
0.85
1.59
0.04
<0.03
33.7
0.1
2.69
5.81
13.3
12
V2O3
---
---
---
---
---
---
---
---
0.99
1.07
Cr2O3
0.58
0.22
<0.03
0.27
---
0.36
7.39
22.4
44.2
47.1
MgO
21.9
3.42
3.84
26.3
0.2
0.29
0.55
2.83
1.42
4.96
CaO
3.64
17.5
0.56
0.32
18.6
0.03
0.09
0.19
0.03
0.03
MnO
0.35
0.33
0.68
0.36
---
0.34
0.36
0.23
0.24
0.25
FeO
19.6
28.5
64.6
37.5
0.55
45.8
58.3
46.1
35.7
29.7
Na2O
<0.03
0.05
---
---
0.84
--
---
---
---
---
K2O
---
---
---
---
<0.03
---
---
---
---
---
Total
100.6
100.3
100.1
100.5
99.7
98.8
99.7
99.1
100.2
99.1

13Mg-poor Chromite, 14Mg-rich Chromite

Table S3: Compositional Data for 70017,541

Aug
Pig
Ol
Pl
Ilm
Cr-Usp
Arm15
SiO2
53.4
47.2
30.5
35.7
45.8
0.03
0.22
TiO2
0.34
1.39
---
---
---
51.9
29.7
Al2O3
0.85
1.59
0.04
<0.03
33.7
0.1
2.69
Cr2O3
0.58
0.22
<0.03
0.27
---
0.36
7.39
MgO
21.9
3.42
3.84
26.3
0.2
0.29
0.55
CaO
3.64
17.5
0.56
0.32
18.6
0.03
0.09
MnO
0.35
0.33
0.68
0.36
---
0.34
0.36
FeO
19.6
28.5
64.6
37.5
0.55
45.8
58.3
Na2O
<0.03
0.05
---
---
0.84
--
---
K2O
---
---
---
---
<0.03
---
---
Total
100.6
100.3
100.1
100.5
99.7
98.8
99.7

15Armalcolite

Table S4: Compositional Data for 70035,193

Pig
Aug
Ol
Pl
Ilm
Cr-Usp
Arm
SiO2
52.9
48.2
36
46.6
<0.03
0.25
0.08
TiO2
0.83
3.51
0.06
---
54.2
21.4
72.9
Al2O3
1.02
4.13
---
32.89
0.02
6.91
1.91
V2O3
---
---
---
---
---
0.41
---
Cr2O3
0.38
0.89
0.18
---
0.74
21.65
1.99
MgO
17.3
8.25
33.6
0.34
39.6
44.3
14.6
CaO
0.35
0.16
0.38
---
0.36
0.31
0.07
MnO
23.3
14.6
29.5
0.21
4.55
4.03
7.83
FeO
3.74
19.8
0.29
17.7
0.04
0.21
0.28
Na2O
<0.03
0.1
---
1.4
---
---
---
K2O
---
---
---
0.07
---
---
---
Total
99.8
99.7
100
99.2
99.5
99.4
99.6

Table S5: Compositional Data for Mineral Separates from 15058,276

Green Pyroxene
Brown Pyroxene
Plagioclase
N
45
45
50
SiO2
53.0 (11)
49.1 (15)
46.3 (99)
TiO2
0.30 (12)
0.84 (24)
---
Al2O3
1.14 (39)
1.48 (52)
33.4 (91)
Cr2O3
0.80 (9)
0.45 (30)
---
MgO
22.7 (21)
10.9 (45)
0.17 (10)
CaO
3.44 (11)
10.5 (25)
18.0 (56)
MnO
0.31 (3)
0.38 (6)
---
FeO
18.1 (13)
26.0 (64)
0.61 (11)
Na2O
0.01 (1)
0.03 (1)
1.05 (22)
K2O
---
---
0.05 (4)
Total
99.9
99.6
99.7

Table S6: Compositional Data for Mineral Separates from 15555,965

Light Brown Pyroxene
Reddish-Brown Pyroxene
Olivine
Plagioclase
N
47
49
37
42
SiO2
51.0 (10)
48.3 (11)
34.2 (22)
45.8 (59)
TiO2
0.61 (20)
1.15 (21)
---
---
Al2O3
1.35 (48)
1.52 (31)
0.03 (6)
33.2 (66)
Cr2O3
0.55 (16)
0.29 (15)
0.14 (8)
---
MgO
18.3 (20)
11.0 (28)
22.4 (82)
0.24 (4)
CaO
6.80(24)
10.8 (23)
0.37 (9)
18.1 (38)
MnO
0.35 (5)
0.38 (5)
0.40 (9)
---
FeO
20.3 (26)
25.4 (41)
42.0 (99)
0.51 (7)
Na2O
0.03 (1)
0.03 (2)
---
0.98 (16)
K2O
---
---
---
0.03 (2)
Total
99.28
98.87
99.6
98.8

Table S7: Compositional Data for Mineral Separates from 70017,535

Light Brown Pyroxene
Dark Brown Pyroxene
Plagioclase
Ilmenite
N
33
58
37
20
SiO2
51.2 (96)
49.2 (11)
46.8 (81)
0.03 (3)
TiO2
1.07 (34)
2.07 (77)
---
53.7 (15)
Al2O3
1.21 (45)
2.47 (11)
32.7 (65)
0.21 (11)
Cr2O3
0.36 (9)
0.58 (22)
---
1.04 (11)
MgO
19.7 (32)
14.8 (14)
0.20 (2)
3.06 (13)
CaO
6.17 (20)
15.2 (24)
17.3 (47)
0.03 (1)
MnO
0.37 (6)
0.30 (6)
---
0.38 (4)
FeO
20.1 (34)
14.5 (43)
0.36 (7)
41.4 (17)
Na2O
0.03 (2)
0.08 (2)
1.43 (15)
---
K2O
---
---
0.06 (2)
---
Total
100.2
99.2
98.9
99.8

Table S8: Compositional Data for Mineral Separates from 70035,188

Light Brown Pyroxene
Dark Brown Pyroxene
Plagioclase
Ilmenite
N
50
50
25
25
SiO2
51.4 (10)
49.5 (12)
46. 9 (72)
0.09
TiO2
1.11 (47)
1.94 (64)
---
54
Al2O3
1.39 (60)
2.46 (89)
33.0 (47)
0.05
Cr2O3
0.42 (11)
0.61 (17)
---
0.8
MgO
20.9 (23)
16.3 (20)
0.24 (3)
3.37
CaO
6.19 (36)
14.0 (38)
17.3 (35)
---
MnO
0.32 (4)
0.27 (6)
---
0.37
FeO
17.5 (24)
13.6 (38)
0.35 (6)
41.4
Na2O
0.03 (2)
0.07 (2)
1.47 (18)
---
K2O
---
---
0.06 (2)
---
Total
99.3
98.8
99.3
100