His analysis of chrysoberyl does not possess the accuracy of the rest: by some inadvertence, he has taken a compound of glucina and alumina for silica.
The analysis of a specimen of Brazilian chrysoberyl gave alumina 78.
A remarkable dichroic variety of chrysoberyl is known as alexandrite (q.
Chrysoberyl is often mistaken by its colour for chrysolite (q.
Chrysoberyl is not infrequently cloudy, opalescent and chatoyant, and is then known as "cymophane" (Gr.
Most chrysoberyl comes from Brazil, chiefly from the district of Minas Novas in the state of Minas Geraes, where it occurs as small water-worn pebbles.
This, the rarest of all, is a chatoyant variety of chrysoberyl (q.
The true chrysoberyl cat's-eye also has a somewhat similar fibrous or perhaps tubular structure.
Many of the yellowish tourmalines have a decidedly greenish cast (greenish-yellow chrysoberyl might resemble these also).
Chrysoberyl of the variety Alexandrite now comes mainly from Ceylon, although formerly from the Ural Mountains.
Also the more valuable chrysoberyl cat's-eye may be confused with the cheaper quartz cat's-eye unless one is well acquainted with the respective appearances of the two varieties.
Other varieties of chrysoberyl (most of those marketed are of a greenish-yellow color) are correctly named simply "chrysoberyls.
This species furnishes us Alexandrite, chrysoberyl cat's-eye and less valuable chrysoberyls of yellowish-green color.
After chrysoberyl come the materials rated as about 8 in hardness.
The beryl also, is sea-green one way and a beautiful blue another; the yellow chrysoberyl is brown one way and yellow with a greenish cast when viewed another way.
Another important variety is that of the chrysoberyl called "cymophane.
In some instances this difference may cause a slight overlapping of the groups, as in group C, where the chrysoberyl may weigh from 3.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "chrysoberyl" in a variety of sentences. We hope that you will now be able to make sentences using this word. Other words: diamond; emerald; jade; ruby; sapphire; stone
