4 ms·

Title should have been "ratios of compounds"

• overcast 9y ago
  That wouldn't have attracted nearly as many clicks.
• theptip 9y ago
  > There are also grains of a compound consisting of mainly nickel and phosphorus, with very little iron, a mineral composition never observed before on Earth or in meteorites The title is correct.
  • intrasight 9y ago
    Then I am just not familiar with this use of the term "compound". I was thinking synonymous with "mineral", as in https://en.wikipedia.org/wiki/Mineral https://en.wikipedia.org/wiki/Mineral "Minerals are chemical compounds, and as such they can be described by fixed or a variable formula." But now I think it means like: http://www.scienceclarified.com/everyday/Real-Life-Earth-Science-Vol-2/Rocks-Key-terms.html http://www.scienceclarified.com/everyday/Real-Life-Earth-Sci... "COMPOUND: A substance made up of atoms of more than one element, chemically bonded to one another"
• apo 9y ago
  Yes. As a chemist, this was a very frustrating read. However, I found a concise summary in the abstract to the original article: A lack of silicate matter sets the stone apart from interplanetary dust particles and known cometary material. This, along with the dual intermingled matrices internal to it, could indicate a high degree of heterogeneity in the early solar nebula. http://www.sciencedirect.com/science/article/pii/S0016703717307962?via%3Dihub http://www.sciencedirect.com/science/article/pii/S0016703717...
• simonh 9y ago
  No, not at all, it's ratios of elements that form a compound. Some of the compounds found are predominantly composed of elements that are expected to be minor constituents, particularly carbon, which is an element.