| Webster's Online Dictionary |
| Part of Speech | Definition | |
| Noun | 1. A name given to fluor spar in Derbyshire, where it is used for ornamental purposes.[Websters]. | |
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Date "Blue-john" was first used in popular English literature: sometime before 1828. (references) |
| Domain | Definition | ||
| Noah Webster | [Noun] Among miners, fluor spar, a mineral, found in the mines of Derbyshire, and fabricated into vases and other ornamental figures. Source: Webster's 1828 American Dictionary. | ||
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Source: compiled by the editor from various references; see credits. | Top | ||
| Part of Speech | Definition | |
| Noun | 1. A name given to fluor spar in Derbyshire, where it is used for ornamental purposes.[Websters]. | |
| Top | ||
Date "BLUE-JOHN" was first used in popular English literature: sometime before 1828. (references) |
| Domain | Definition | ||
| Noah Webster | [Noun] Among miners, fluor spar, a mineral, found in the mines of Derbyshire, and fabricated into vases and other ornamental figures. Source: Webster's 1828 American Dictionary. | ||
Source: compiled by the editor from various references; see credits. | Top | ||