Vesuvianite (Idocrase)
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
6.5
Specific Gravity
3.25 – 3.5
Refractive Index
1.7 – 1.725
Crystal System
Tetragonal
Luster
Greasy
Cleavage
Indistinct
Fracture
Uneven,Splintery
Color
various
Birefringence
0.002
Dispersion
0.019
Pleochroism
Orange/brown vesuvianite - weak: light body color - dark body color; Green - weak: yellow-green - yellow-brown; Yellow - weak: colorless - yellow
Mohs Hardness
| Mohs | Reference mineral | Vesuvianite (Idocrase) |
|---|---|---|
| 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 Vesuvianite (Idocrase)
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 Vesuvianite (Idocrase)
ヴェスビアナイト（イドクレース）は複雑なカルシウム‐アルミニウムケイ酸塩鉱物で、黄緑色から褐緑色・橙色・褐色・紫色まで様々な色を呈し、ガラス質の光沢を持ちます。イタリアのヴェスヴィオ火山付近のコンタクト変成岩スカルンで最初に記載されました。カルフォルニアスリランカのカリフォルナイトとして知られる濃い緑色のカリフォルニア産変種と、カナダの濃い緑色のウィルアイトがコレクターに特に人気があります。
On this page
Jewelry Use
Durability
6/10
Science FYI Family
Frequently Asked Questions
What is Vesuvianite (Idocrase)?
ヴェスビアナイト（イドクレース）は複雑なカルシウム‐アルミニウムケイ酸塩鉱物で、黄緑色から褐緑色・橙色・褐色・紫色まで様々な色を呈し、ガラス質の光沢を持ちます。イタリアのヴェスヴィオ火山付近のコンタクト変成岩スカルンで最初に記載されました。カルフォルニアスリランカのカリフォルナイトとして知られる濃い緑色のカリフォルニア産変種と、カナダの濃い緑色のウィルアイトがコレクターに特に人気があります。
What is the hardness of Vesuvianite (Idocrase)?
Vesuvianite (Idocrase) has a Mohs hardness of 6.5, making it moderate for use in jewelry.
What color is Vesuvianite (Idocrase)?
Vesuvianite (Idocrase) is primarily Various.
How much does Vesuvianite (Idocrase) cost?
Vesuvianite (Idocrase) falls into the Moderate ($50-500/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Vesuvianite (Idocrase)?
Vesuvianite (Idocrase) belongs to the Tetragonal crystal system.