Gadolinium Gallium Garnet (GGG)
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
6.5
Specific Gravity
7.05
Refractive Index
1.97 – 2.03
Crystal System
Isometric
Color
red
Mohs Hardness
| Mohs | Reference mineral | Gadolinium Gallium Garnet (GGG) |
|---|---|---|
| 1 | Talc | |
| 2 | Gypsum | |
| 3 | Calcite | |
| 4 | Fluorite | |
| 5 | Apatite | |
| 6 | Orthoclase | |
| 7 | Quartz | |
| 8 | Topaz | |
| 9 | Corundum | |
| 10 | Diamond |
Crystal System
Value & Market
Price Tier
Moderate ($50-500/ct)
Where to Buy Gadolinium Gallium Garnet (GGG)
Blue Nile
Fine jewelry retailer
James Allen
Gemstone jewelry
Brilliant Earth
Ethically sourced gems
Amazon
Wide selection
Links may earn a commission at no extra cost to you.
About Gadolinium Gallium Garnet (GGG)
钆镓石榴石（GGG）是一种人工合成的稀土氧化物晶体，化学成分为钆镓氧化物，因其石榴石晶体结构而得名。GGG具有优异的光学和磁学性能，折射率高，色散强，外观类似钻石。在磁光器件和计算机存储技术中有重要应用。作为钻石替代品，其光泽和色散出众，但现已基本被立方氧化锆所取代，仅在特定工业领域继续应用。
On this page
Jewelry Use
Durability
6/10
Science FYI Family
Frequently Asked Questions
What is Gadolinium Gallium Garnet (GGG)?
钆镓石榴石（GGG）是一种人工合成的稀土氧化物晶体，化学成分为钆镓氧化物，因其石榴石晶体结构而得名。GGG具有优异的光学和磁学性能，折射率高，色散强，外观类似钻石。在磁光器件和计算机存储技术中有重要应用。作为钻石替代品，其光泽和色散出众，但现已基本被立方氧化锆所取代，仅在特定工业领域继续应用。
What is the hardness of Gadolinium Gallium Garnet (GGG)?
Gadolinium Gallium Garnet (GGG) has a Mohs hardness of 6.5, making it moderate for use in jewelry.
What color is Gadolinium Gallium Garnet (GGG)?
Gadolinium Gallium Garnet (GGG) is primarily Red.
How much does Gadolinium Gallium Garnet (GGG) cost?
Gadolinium Gallium Garnet (GGG) falls into the Moderate ($50-500/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Gadolinium Gallium Garnet (GGG)?
Gadolinium Gallium Garnet (GGG) belongs to the Isometric crystal system.