Luxurious Specimens

Blog · Timeline stage 3b

A Concentrated Fall: An ASA Digital Art Hypothesis

ASA Digital Art’s speculative scenario of a concentrated fall and plasma-channel pores, set beside the published record.

Editorial study. This essay describes no lot offered for sale. Carbonado’s origin is unresolved and debated. ASA Digital Art’s specimens are not identified as carbonado; no origin, space or otherwise, is claimed for any ASA Digital Art specimen or Luxurious Specimens lot.

This essay presents ASA Digital Art’s own hypothesis. It is not a published finding. We suggest that the fragments fell as a shower concentrated over one region of the joined Brazil–Africa landmass, and that so tight a concentration might point to a supernova in a nearby star.

Part of this idea has a published counterpart. Haggerty favors a single body, and the two deposits lie on crust that was once continuous[1,2,3]. The link to a nearby supernova is our own; it does not appear in the sources.

ASA Digital Art’s theory: based on our own research and analysis, the pores and holes in carbonado could be plasma channels formed as fragments passed through the atmosphere. ASA Digital Art’s observation: some features on our own specimens are rounded with a hole at the center, which we read as possible support for the idea. Neither proves anything, and our specimens are not identified as carbonado.

The published explanations differ. Haggerty attributes the pores to the escape of interstellar hydrogen, not atmospheric entry[3], and notes that many surface pits and microcraters are younger than the patina, implying more than one process[3]. Other researchers explain porosity through growth from fluids[4].

A further caution concerns boreholes. Marine organisms such as sponges, bivalves and worms bore into hard substrates, a process known as bioerosion[5]. Holes in rock recovered from former sea floor can therefore have biological causes, and any pore in a specimen of unknown origin must be weighed against that possibility.

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References

  1. Discover Magazine, “Diamonds From Outer Space” (interview reporting Haggerty's single-asteroid view). https://www.discovermagazine.com/60-diamonds-from-outer-space-11985
  2. New Scientist, “Rare black diamonds may have come from space.” https://www.newscientist.com/article/1900370-rare-black-diamonds-may-have-come-from-space/
  3. Gems & Gemology (GIA), Summer 2017, “Carbonado Diamond: A Review of Properties and Origin.” https://www.gia.edu/gems-gemology/summer-2017-carbonado-diamond
  4. Ishibashi, H. et al. (2012). Hydrous fluid as the growth media of natural polycrystalline diamond, carbonado. American Mineralogist. https://doi.org/10.2138/am.2012.4097
  5. Schönberg, C. H. L., Fang, J. K. H., Carreiro-Silva, M., Tribollet, A. & Wisshak, M. (2017). Bioerosion: the other ocean acidification problem. ICES Journal of Marine Science 74(4), 895–925. https://doi.org/10.1093/icesjms/fsw254