Green Opal: The Ultimate Guide to Meaning, Properties, Uses

green opal

Despite being recognized as a mineral, Green Opal is not such in the strict sense of the word, since it is composed of amorphous silica. Classified within the oxides with formula SiO2nH2O. The composition is the same as quartz with the difference that the opal is hydrated, that is, it has water molecules in its … Read more

Black Agate: The Ultimate Guide to Meaning, Properties, Uses

black agate

The world of jewelry is quite interesting. Many types of jewelry can be used and each person has their own taste. The models are infinite and each stone has a different meaning. The sensations and properties will make you feel elegant and you will feel how little by little the extravagant world of precious stones … Read more