from The Century Dictionary.
- noun A variety of silicious sinter found incrusting volcanic tufa.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Min.) A variety of opal occuring in the cavities of volcanic tufa, in smooth and shining globular and botryoidal masses, having a pearly luster; -- so called from Fiora, in Ischia.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun mineralogy A variety of
opaloccurring in the cavities of volcanic tufa, in smooth and shining globularand botryoidal masses.
from Wiktionary, Creative Commons Attribution/Share-Alike License
Fiora + -ite
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