Aventurine, The Sparkling Birthstone for July 17th
Birthstone for July 17th: Aventurine Description of Aventurine Aventurine is a striking, translucent variety of quartz that is known for its shimmering, sparkling appearance. This “adventurous” gemstone gets its name from the Italian word avventurina, meaning “by chance,” which refers to the accidental discovery of the stone’s sparkling effect while making glass. The shimmering effect is known as aventurescence, a unique optical phenomenon caused by the inclusion of tiny mineral inclusions, such as mica or hematite, within the crystal structure....