Leucite
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
5.5 – 6.0
Specific Gravity
2.45 – 2.5
Refractive Index
1.504 – 1.51
Crystal System
Tetragonal
Luster
Vitreous
Cleavage
Poor
Fracture
Conchoidal
Color
various
Dispersion
0.01
Mohs Hardness
| Mohs | Reference mineral | Leucite |
|---|---|---|
| 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
Budget (< $50/ct)
Where to Buy Leucite
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 Leucite
ロイサイトは、カリウムアルミニウムケイ酸塩の鉱物で、特徴的な四角二十四面体の結晶形を示し、白色・灰色・無色で、ガラス光沢をもちます。カリウムに富む火成岩（粗面岩・フォノライト・ロイサイト玄武岩）のみに産し、高温では正方晶系ですが冷却とともに擬形を保ったまま等軸晶系に転移します。透明な切り石はコレクター専用の極希少品であり、イタリアのベスビオ火山やヴルカーノ島が著名産地です。
On this page
Jewelry Use
Durability
4/10
Science FYI Family
Frequently Asked Questions
What is Leucite?
ロイサイトは、カリウムアルミニウムケイ酸塩の鉱物で、特徴的な四角二十四面体の結晶形を示し、白色・灰色・無色で、ガラス光沢をもちます。カリウムに富む火成岩（粗面岩・フォノライト・ロイサイト玄武岩）のみに産し、高温では正方晶系ですが冷却とともに擬形を保ったまま等軸晶系に転移します。透明な切り石はコレクター専用の極希少品であり、イタリアのベスビオ火山やヴルカーノ島が著名産地です。
What is the hardness of Leucite?
Leucite has a Mohs hardness of 5.5 to 6.0, making it moderate for use in jewelry.
What color is Leucite?
Leucite is primarily Various.
How much does Leucite cost?
Leucite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Leucite?
Leucite belongs to the Tetragonal crystal system.