Chalcedony includes minerals like agate, onyx, jasper, and heliotrope. Chalcedony has a waxy lustre and is usually translucent to opaque. Key characteristics of Chalcedony include its hardness (around ...

Located in the beautiful city of Jaipur, India, Stonescart began in 2000 as a quality stones manufacturer. It has been well-recognized in the domestic market for 20 years and in 2020, it began its ...

Since 1968, Van Cleef & Arpels’ Alhambra collection, an enduring icon of luck, has lent itself to elegant interpretations of materials and functionality.

The geochemistry of agate and chalcedony in volcanic rocks represents an intricate record of silica precipitation and crystallisation processes occurring under variable thermal and chemical conditions ...