Gems

History and origin The appearance of larimar is shrouded in mystery. Its earthly, documented history is accompanied by a legendary version.

Property Description Formula Al2O3 Impurity Cr Hardness 9 Density 3.99-4.10 g/cm³ Refractive index 1.763-1.772

Clear quartz (Crystal) magical properties of the stone When it comes to talking about quartz, most people immediately

Ruby is one of the most expensive precious minerals. Distinctive features are high hardness and transparency,

List of leading countries in gold mining in the world Among all minerals, this rock is considered

Description of the noble metal. How can you determine its purity Gold is a group 11 element with

Unique colors in jewelry are purple quartz or amethyst. It is difficult to confuse him with

Due to difficulties in processing the material over a long period of time for technical and jewelry purposes

“If a jeweler is burned after death, what will be left of him is a 5 gram gold bar,”

People have been thinking about how to make a diamond for decades. And all because growing