Ring with chrysocolla chalcedony

Ring adjustable in gold filled 14k over sterling silver with flower design on a side suitable for 7 or 8 size finger. I have placed a big and beautiful light green in chrysocolla chalcedony, a rare stone from Indonesia. A very special ring for a very special person!

Natural green chalcedony from Indonesia is generally considered rare, particularly in specific varieties and qualities. However, it is a well-known and actively sought-after material in the gem and mineral market.

🗺️ Sources of Indonesian Green Chalcedony

Green chalcedony from Indonesia is primarily associated with two main types of deposits, each producing a distinct form of the mineral:

· "Grape Agate" (Botryoidal Chalcedony) from Sulawesi: Discovered around 2016, this material is known for its clusters of spherical, grape-like formations. While it is famous for its purple color, green specimens exist and are considered extremely rare and highly collectible, with reports indicating the initial find is nearly exhausted .
· Chrysocolla Chalcedony (Gem Silica): This is a blue to green variety colored by copper minerals like chrysocolla. It is found in several locations, including Obi Island, and is valued for its vibrant, even color and translucency. High-quality material is rare and commands high prices globally .

🔬 Why Is It Green?

The green color in Indonesian chalcedony comes from different mineral inclusions:

· Copper Minerals: The vibrant blue-green "gem silica" variety owes its color to microscopic inclusions of chrysocolla (a copper mineral) .
· Iron-Bearing Minerals: Some green chalcedony, including green "grape agate," gets its color from inclusions of iron-rich minerals like chlorite .

💎 Rarity and Value

Several factors contribute to the rarity and value of Indonesian green chalcedony:

· Exhaustion of Sources: The "grape agate" deposits in Sulawesi that produced green material are reported to be "almost completely exhausted" just a few years after their discovery .
· High Demand: Chrysocolla chalcedony (gem silica) is one of the most valuable varieties of chalcedony, and fine material from Indonesia is highly sought after in markets like China .
· Quality: The rarity increases exponentially with the quality of the specimen. Pristine pieces with intense green color, good luster, and unique formations are exceptionally rare and represent the top fraction of a percent of all finds .

In summary, while Indonesia is a notable source of green chalcedony, the finest specimens, especially of the green "grape agate" and high-quality "gem silica" varieties, are rare and valuable.