datolite
/ˈdatəlʌɪt/(also datholite) Mineralogy
noun
A boron-containing mineral typically occurring as colourless glassy crystals or fine-grained masses, especially as a secondary mineral on basic igneous rocks.
- Datolite is a basic calcium borosilicate, CaBSiO4(OH). Crystal system: monoclinic..
Origin
Early 19th century. From German Datolith (formerly also written Datholit, Datholith); from dat- (in ancient Greek δατεῖσθαι to divide; from an ablaut variant (zero grade) of the same base as δῆμος) + -lith), with remodelling of the ending after -lite.
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- signatureless
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- signaturist
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- signed, sealed, and delivered (or signed and sealed)
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- sign-event