Cassiterite
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
6.0 – 7.0
Specific Gravity
6.86 – 7.03
Refractive Index
1.99 – 2.105
Crystal System
Tetragonal
Cleavage
Indistinct
Fracture
Conchoidal
Color
various
Birefringence
0.096
Dispersion
0.071
Pleochroism
Weak to strong; green-yellow, brown, red-brown
Mohs Hardness
| Mohs | Reference mineral | Cassiterite |
|---|---|---|
| 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 Cassiterite
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 Cassiterite
錫石（カッシテライト）はスズの主要鉱石鉱物で、褐色から黒色・赤みがかった褐色のスズ酸化物として産出し、稀に透明な宝石品質の結晶が得られます。その高い屈折率と強い分散性はダイヤモンドに匹敵する輝きを生み、コレクターや宝石学者に珍重されています。ボリビア・ミャンマー・中国が主要産地です。
On this page
Jewelry Use
Durability
5/10
Science FYI Family
Frequently Asked Questions
What is Cassiterite?
錫石（カッシテライト）はスズの主要鉱石鉱物で、褐色から黒色・赤みがかった褐色のスズ酸化物として産出し、稀に透明な宝石品質の結晶が得られます。その高い屈折率と強い分散性はダイヤモンドに匹敵する輝きを生み、コレクターや宝石学者に珍重されています。ボリビア・ミャンマー・中国が主要産地です。
What is the hardness of Cassiterite?
Cassiterite has a Mohs hardness of 6.0 to 7.0, making it moderate for use in jewelry.
What color is Cassiterite?
Cassiterite is primarily Various.
How much does Cassiterite cost?
Cassiterite falls into the Moderate ($50-500/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Cassiterite?
Cassiterite belongs to the Tetragonal crystal system.