File:Britannica Sheelite.png
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Britannica_Sheelite.png (354 × 547 pixels, file size: 10 KB, MIME type: image/png)
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| Description |
English: Diagram of a scheelite crystal with single-letter labels |
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| Date | published 1911 | |||
| Source | 1911 Encyclopædia Britannica, Vol. 24, p. 315 | |||
| Author | Unknown author | |||
| Permission (Reusing this file) |
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“Well-developed crystals are not infrequent; they usually have the form of acute tetragonal bipyramids (P in fig.); sometimes other pyramid-faces are present, and these (g and n) being developed on only one side of P indicate the parallel-faced hemihedrism of the crystals.”
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 13:20, 28 September 2010 | | 354 × 547 (10 KB) | Bob Burkhardt | {{Information |Description={{en|1=Diagram of a scheelite crystal with single-letter labels}} |Source=1911 Encyclopædia Britannica, Vol. 24, p. 315 |Author=unknown |Date=published 1911 |Permission={{PD-Britannica}} |other_versions= }} “Well-developed cr |
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