Thaumasite
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
3.5
Specific Gravity
1.91
Refractive Index
1.467 – 1.505
Crystal System
Hexagonal
Luster
Vitreous
Cleavage
Poor
Fracture
Sub-Conchoidal
Color
various
Birefringence
0.038
Mohs Hardness
| Mohs | Reference mineral | Thaumasite |
|---|---|---|
| 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 Thaumasite
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 Thaumasite
タウマサイトは稀なカルシウムケイ酸塩‐硫酸塩‐炭酸塩鉱物で、コンクリートや建材の劣化（タウマサイト形態の硫酸塩侵食）に関する建材工学上の重要性で知られているほか、針状または繊維状の無色から白色の結晶として接触変成スカルンや低温熱水環境に産出します。石英と混同されることもありますが、その化学組成は独特です。鉱物標本としての関心とともに材料科学でも重要な鉱物です。
On this page
Jewelry Use
Durability
2/10
Science FYI Family
Frequently Asked Questions
What is Thaumasite?
タウマサイトは稀なカルシウムケイ酸塩‐硫酸塩‐炭酸塩鉱物で、コンクリートや建材の劣化（タウマサイト形態の硫酸塩侵食）に関する建材工学上の重要性で知られているほか、針状または繊維状の無色から白色の結晶として接触変成スカルンや低温熱水環境に産出します。石英と混同されることもありますが、その化学組成は独特です。鉱物標本としての関心とともに材料科学でも重要な鉱物です。
What is the hardness of Thaumasite?
Thaumasite has a Mohs hardness of 3.5, making it relatively soft for use in jewelry.
What color is Thaumasite?
Thaumasite is primarily Various.
How much does Thaumasite cost?
Thaumasite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Thaumasite?
Thaumasite belongs to the Hexagonal crystal system.