Nepheline
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
5.0 – 6.0
Specific Gravity
2.55 – 2.65
Refractive Index
1.529 – 1.547
Crystal System
Hexagonal
Luster
Vitreous,Greasy
Cleavage
Imperfect
Fracture
Sub-Conchoidal
Color
various
Birefringence
0.003
Mohs Hardness
| Mohs | Reference mineral | Nepheline |
|---|---|---|
| 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 Nepheline
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 Nepheline
霞石是一种富钠铝的架状硅酸盐矿物，通常呈无色、白色、灰色或淡黄色，具有玻璃至油脂光泽，透明至半透明。霞石是碱性岩浆岩（如霞石正长岩、霞石玄武岩）的主要造岩矿物，由于硅不饱和，不与石英共生。在宝石领域，透明的霞石偶有被切磨，但因其硬度较低（莫氏5.5-6）和较完全的解理，商业价值有限，主要作为矿物标本。在工业上，霞石是重要的铝、钠原料来源，广泛用于玻璃、陶瓷和化工行业。
On this page
Jewelry Use
Durability
4/10
Science FYI Family
Frequently Asked Questions
What is Nepheline?
霞石是一种富钠铝的架状硅酸盐矿物，通常呈无色、白色、灰色或淡黄色，具有玻璃至油脂光泽，透明至半透明。霞石是碱性岩浆岩（如霞石正长岩、霞石玄武岩）的主要造岩矿物，由于硅不饱和，不与石英共生。在宝石领域，透明的霞石偶有被切磨，但因其硬度较低（莫氏5.5-6）和较完全的解理，商业价值有限，主要作为矿物标本。在工业上，霞石是重要的铝、钠原料来源，广泛用于玻璃、陶瓷和化工行业。
What is the hardness of Nepheline?
Nepheline has a Mohs hardness of 5.0 to 6.0, making it moderate for use in jewelry.
What color is Nepheline?
Nepheline is primarily Various.
How much does Nepheline cost?
Nepheline falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Nepheline?
Nepheline belongs to the Hexagonal crystal system.