Online Encyclopedia

BERYLLONITE

Online Encyclopedia
Originally appearing in Volume V03, Page 818 of the 1911 Encyclopedia Britannica.
Spread the word: del.icio.us del.icio.us it!

BERYLLONITE  , a

See also:
mineral phosphate of
See also:
beryllium and sodium, NaBePO4, found as highly complex orthorhombic crystals and as broken fragments in the disintegrated material of a granitic vein at
See also:
Stoneham, Maine, where it is associated with felspar, smoky
See also:
quartz,
See also:
beryl and
See also:
columbite . It was discovered by Prof . E . S . Dana in 1888, and named beryllonite because it contains beryllium in large amount . The crystals vary from colourless to white or pale yellowish, and are trans-parent with a vitreous lustre; there is a perfect cleavage in one direction . Hardness 51-6; specific gravity 2.845 . A few crystals have been cut and faceted, but, as the refractive
See also:
index is no higher than that of quartz, they do not make very brilliant gem-stones .

End of Article: BERYLLONITE
[back]
BERYLLIUM
[next]
JONS JAKOB BERZELIUS (1779-1848)

Additional information and Comments

There are no comments yet for this article.
» Add information or comments to this article.
Please link directly to this article:
Highlight the code below, right click and select "copy." Paste it into a website, email, or other HTML document.