Lectionary Calendar
Tuesday, November 5th, 2024
the Week of Proper 26 / Ordinary 31
Attention!
For 10¢ a day you can enjoy StudyLight.org ads
free while helping to build churches and support pastors in Uganda.
Click here to learn more!

Bible Encyclopedias
Beryllonite

1911 Encyclopedia Britannica

Search for…
or
A B C D E F G H I J K L M N O P Q R S T U V W Y Z
Prev Entry
Beryllium
Next Entry
Bes
Resource Toolbox

a mineral phosphate of beryllium and sodium, NaBePO 4, found as highly complex orthorhombic crystals and as broken fragments in the disintegrated material of a granitic vein at Stoneham, Maine, where it is associated with felspar, smoky quartz, beryl and 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 transparent 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 index is no higher than that of quartz, they do not make very brilliant gem-stones.

Bibliography Information
Chisholm, Hugh, General Editor. Entry for 'Beryllonite'. 1911 Encyclopedia Britanica. https://www.studylight.org/​encyclopedias/​eng/​bri/​b/beryllonite.html. 1910.
 
adsfree-icon
Ads FreeProfile