Chalcedonies include many types of cryptocrystalline quartz gems and feature a number of different colors. Geologists can tell a chalcedony from the arrangement and structure of its crystals.

Wipe your jade jewelry with a soft cloth after wearing, and wipe it down with a gem cleaner every so often ... It’s commonly diffused along with heat application to create different colors. Yellow ...

In a previous color, we’ve talked about what makes things colored — the way objects absorb, reflect, or transmit light at ...

We’re all familiar with our birthstones, and the true jewelry enthusiasts among us can probably name a few other favorite ...

Gem corundum can display asterism and chatoyancy due to the ... (a “cat’s-eye” seen in reflected light), or a color change when viewed under different types of lighting. Found in nearly every color – ...

To research recent prices at auction to see how much different types of gemstones sold for you can also try out thesaleroom.com’s Price Guide. If you are new to bidding check out our guides to buying ...

Each type of gemstone has traditional associations with ... addition to your holistic wellness toolkit. Experiment with ...

Stony-iron meteorites consist of almost equal parts iron-nickel metal and silicate minerals including precious and semi-precious gemstones. They are considered some of the most beautiful meteorites.