Talc
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Physical & Optical Properties
Category
Collector Gems
Mohs Hardness
1.0
Specific Gravity
2.55 – 2.8
Refractive Index
1.539 – 1.596
Crystal System
Monoclinic
Luster
soapstone
Cleavage
Perfect
Color
various
Birefringence
0.046
Mohs Hardness
Mohs Hardness: 1.0
1 Soft10 Hard
Crystal System
Value & Market
Price Tier
Budget (< $50/ct)
Where to Buy Talc
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About Talc
滑石是已知最软的矿物（摩氏硬度1），呈白色至浅绿色，以其蜡状至油脂质感和极柔软的手感著称。宝石级滑石较为罕见，但有时会被切割成素面宝石或用于雕刻，其温润的光泽颇具美感。中国、巴西、印度和美国是主要产地，滑石最广为人知的用途是制造滑石粉，但在宝石学领域作为软质矿物研究标本亦有一席之地。
Jewelry Use
Durability
1/10
Science FYI Family
Frequently Asked Questions
What is Talc?
滑石是已知最软的矿物（摩氏硬度1），呈白色至浅绿色，以其蜡状至油脂质感和极柔软的手感著称。宝石级滑石较为罕见，但有时会被切割成素面宝石或用于雕刻，其温润的光泽颇具美感。中国、巴西、印度和美国是主要产地，滑石最广为人知的用途是制造滑石粉，但在宝石学领域作为软质矿物研究标本亦有一席之地。
What is the hardness of Talc?
Talc has a Mohs hardness of 1.0, making it relatively soft for use in jewelry.
What color is Talc?
Talc is primarily Various.
How much does Talc cost?
Talc falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Talc?
Talc belongs to the Monoclinic crystal system.