aventurin

from The Century Dictionary.

• noun A sort of opaque golden-brown glass filled with specks or drops of a bright gold-color and of different sizes, used, under the name of goldstone, for various ornaments.
• noun A variety of feldspar, usually oligoclase, spangled with scales of hematite, göthite, or mica. It is often called sunstone. The most highly prized variety is obtained in Russia.
• noun A similar variety of quartz containing spangles of mica or other mineral.
• noun A kind of sealing-wax, of a translucent brown color and abounding in gold specks or particles.
• Having the appearance of aventurin: as, aventurin lacquer, etc.
• Also written avanturin, avanturine.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun Alternative form of aventurine.