Iris Agate
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
6.5 – 7.0
Specific Gravity
2.55 – 2.7
Refractive Index
1.53 – 1.543
Crystal System
Trigonal
Luster
Waxy
Color
various
Birefringence
0.008
Mohs Hardness
| Mohs | Reference mineral | Iris Agate |
|---|---|---|
| 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 Iris Agate
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 Iris Agate
アイリスアゲートは、薄くスライスして光にかざすと虹色の干渉色を示す特殊なアゲートです。非常に細かい縞状の内部構造が光を回折させ、スペクトル全色の虹を生み出します。スライスしたものをカボションに加工するとこの効果が最もよく現れます。世界各地で産出しますが、高品質なものは稀少です。
On this page
Jewelry Use
Durability
6/10
Science FYI Family
Frequently Asked Questions
What is Iris Agate?
アイリスアゲートは、薄くスライスして光にかざすと虹色の干渉色を示す特殊なアゲートです。非常に細かい縞状の内部構造が光を回折させ、スペクトル全色の虹を生み出します。スライスしたものをカボションに加工するとこの効果が最もよく現れます。世界各地で産出しますが、高品質なものは稀少です。
What is the hardness of Iris Agate?
Iris Agate has a Mohs hardness of 6.5 to 7.0, making it moderate for use in jewelry.
What color is Iris Agate?
Iris Agate is primarily Various.
How much does Iris Agate cost?
Iris Agate falls into the Moderate ($50-500/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Iris Agate?
Iris Agate belongs to the Trigonal crystal system.