posted by asa arif on Sep 6
There are many different types of gemstones, and knowing the different categories can help a collector or enthusiast expand his repertoire greatly. Some precious gemstones are so unique in chemical composition and crystalline structure that they fall into their own categories, while others can be collectively lumped into one. Here are the major types of precious and semi precious gemstones:
Diamond is it’s own type of gemstone, and is well known for being the hardest naturally occurring substance known to man. Diamonds are primarily high-carbon crystals that were fused under extremes of pressure and heat.
Diamonds themselves aren’t especially rare, with thousands being mined throughout the world every year; however, large diamonds of high quality are extremely rare, and it is these which are well known for setting the standards of diamond gemstones as the world’s most precious stone. Read the rest of this entry »
