from The Century Dictionary.

  • noun An amorphous emerald-green mineral occurring with malachite at Rézbánya, Hungary. It contains the oxids of copper and antimony, with water, but its homogeneity is doubtful.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A form of stromatolite that has a clotted, rather than a laminated structure


Sorry, no etymologies found.


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  • The thrombolite structures, which can reach heights of up to 1. 3m, are formed when the micro-organisms photosynthesise.

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