Pink spinel anorthosite (PSA) and pink spinel troctolite (PST) are two lunar lithologies known tocontain Mg-rich spinel. PSA rich in spinel and lacking mafic minerals, was detected by the visible andnear-infrared reflectance spectroscopy. PST clasts were found in returned lunar samples and meteorites.NWA 13191 is a recently approved lunar meteorite that contains a large amount of spinel-bearing clastsand provides an opportunity to discuss its origin. Sixty-four spinel-bearing clasts were studied in thisresearch. These clasts are dominated by anorthitic feldspars (20.8–80.9 vol%, An90.9–96.8), mafic-richand aluminum-rich glass (14.7–72.1 vol%) quenched from a melt, and spinels (0.19–5.18 vol%). Fortynine of these clasts appear to have unusually low modal abundances of mafic silicates (avg. olivine± pyroxene, 1.87 vol%), which distinguishes them from known spinel-bearing lunar samples (e.g.,PST). The spinel compositions (avg. Mg# = 90.6, Al# = 97.4) and mafic minerals contents are basicallyconsistent with those of PSA. The absorption characteristics of glass in the reflection spectrum are notobvious, so it is not clear if the PSA contains melt. The simulated crystallization experiment clearlyshows that it contains a large amount of melt at the spinel crystallization stage. These phenomenaprovide experimental and sample evidence for the existence of glass in the lunar spinel-bearing lithologies. NWA 13191 records the highest known bulk Mg# (avg. 89.8), and the spinel records the highestAl# (98.8) and Mg# (93.1) of lunar samples to date. The chemical properties of spinel-bearing clastsin NWA 13191 are consistent with the slightly REE-enriched and alkali-poor Mg-suite rocks, such asPST, magnesian anorthosites (MANs), and olivine-enriched Mg-suite rocks. These phenomena andprevious simulated crystallization experiments indicate that a Mg-Al-rich melt may be produced byimpact melting of Mg-rich anorthosite precursors. The spinel is a metastable crystallization productalong with plagioclase and vitric melt near the Moon’s surface. This realization provides observationalevidence for previous simulated crystallization experiments and theoretical speculations.