Thomsonite Subgroup
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
5.0 – 5.5
Specific Gravity
2.25 – 2.4
Refractive Index
1.51 – 1.55
Crystal System
Orthorhombic
Luster
Silky
Cleavage
Perfect
Fracture
Uneven
Color
various
Birefringence
0.015
Pleochroism
Nil
Mohs Hardness
| Mohs | Reference mineral | Thomsonite Subgroup |
|---|---|---|
| 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 Thomsonite Subgroup
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 Thomsonite Subgroup
汤姆逊沸石是沸石族矿物的一个亚族，呈白色、粉色至棕色，常见放射状或球状集合体。美国明尼苏达州苏必利尔湖沿岸出产的汤姆逊沸石圆形结核（称为"眼石"）颇具特色，色彩丰富，是当地的特色宝石。常被切割成素面宝石，美国、格陵兰和苏格兰是主要产地，深受地方宝石收藏家喜爱。
On this page
Jewelry Use
Durability
4/10
Science FYI Family
Frequently Asked Questions
What is Thomsonite Subgroup?
汤姆逊沸石是沸石族矿物的一个亚族，呈白色、粉色至棕色，常见放射状或球状集合体。美国明尼苏达州苏必利尔湖沿岸出产的汤姆逊沸石圆形结核（称为"眼石"）颇具特色，色彩丰富，是当地的特色宝石。常被切割成素面宝石，美国、格陵兰和苏格兰是主要产地，深受地方宝石收藏家喜爱。
What is the hardness of Thomsonite Subgroup?
Thomsonite Subgroup has a Mohs hardness of 5.0 to 5.5, making it moderate for use in jewelry.
What color is Thomsonite Subgroup?
Thomsonite Subgroup is primarily Various.
How much does Thomsonite Subgroup cost?
Thomsonite Subgroup falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Thomsonite Subgroup?
Thomsonite Subgroup belongs to the Orthorhombic crystal system.