File:1911 Britannica - Apophyllite.png

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1911_Britannica_-_Apophyllite.png (288 × 186 pixels, file size: 40 KB, MIME type: image/png)

Summary

Description
English: Apophyllite always occurs as distinct crystals, which belong to the tetragonal system. The form is either a square prism terminated by the basal planes (fig. 2), or an acute pyramid (fig. 1). Illustration from 1911 Encyclopædia Britannica, article Apophyllite.
Date
Source Encyclopædia Britannica Eleventh Edition, Vol. 2, Page 195
Author Encyclopædia Britannica, 1911

Licensing

Public domain This image comes from the 13th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1929. As such, this image is in the public domain in the United States.

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11 September 2012

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current22:23, 11 September 2012Thumbnail for version as of 22:23, 11 September 2012288 × 186 (40 KB)Clarice ReisUser created page with UploadWizard