The tables below summarize the properties of the emerald and some important data by deposit: Physical, Chemical And Crystallographic Properties Chemical Formula Al2 Be3 [Si6 O18] + Cr o V Mineral Class Group IX Silicates Streak White Hardness 7.5 – 8 Mohs Specific Gravity 2.67 – 2.78 Cleavage Imperfect on the [0001] Fracture Slightly conchoidal,…
Before publishing this article on our website, we discussed a great deal about the kind of information we wanted to provide to our custom-madeers or anyone who was interested in buying an emerald, so that readers can reduce the risk of being deceived or disappointed for not receiving the gem they expected in exchange for…
Emeralds, since their emergence in Upper Egypt, attracted widespread attention and were often confused with several gems that because they were green in color, were far from the emerald; we must remember that in ancient times there were no gemologists for identification. Let’s see some of the names that were used incorrectly for emeralds along…
The origin of the word emerald may derive from the Sanskrit “marakata” or “marakta,” which can be interpreted as “the greenest thing”. The root of “marak” means light, sparkle. In Persia it was called by the word “Zabargat” and the Arabs called it by the name of “Zamarut”. If we go back to the word…
Some evidence and tales tell us about the exploitation of emeralds thousands of years ago, their use in religious rituals and as a token of hierarchy by the natives of the territories that today constitute the mining regions of Colombia, but the most supported historical remains of exploitation of emeralds lead us to Upper Egypt,…
In this post, we wanted to give continuity to our last post about mineral identification, showing some notes about the different types of collections, that a mineral enthusiast who decides to venture into the fantastic world of starting his or her own collection may consider undertaking. The most common types of collections that we usually find…
Determining the cost of a piece of rough can be a daunting task. This is compounded by the complexity of the unique properties exhibited by each mineral type and the value of a piece of rough mineral can change dramatically depending on these properties. ColourOne of the most important factors which influence the value of…
When evaluating collectible minerals, you must keep in mind a series of characteristics or factors without a standardized scale for each one of them, which is why prices don’t correspond with tables, but they respond to the buyers’ interests, in this case collectors in general, and to the availability the salespeople may have of the…