Feldspar
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
6.0 – 6.5
Specific Gravity
2.56 – 2.75
Refractive Index
1.518 – 1.57
Cleavage
Perfect
Fracture
Uneven,Conchoidal,Splintery
Color
various
Birefringence
0.008
Mohs Hardness
| Mohs | Reference mineral | Feldspar |
|---|---|---|
| 1 | Talc | |
| 2 | Gypsum | |
| 3 | Calcite | |
| 4 | Fluorite | |
| 5 | Apatite | |
| 6 | Orthoclase | ● |
| 7 | Quartz | |
| 8 | Topaz | |
| 9 | Corundum | |
| 10 | Diamond |
Value & Market
Price Tier
Moderate ($50-500/ct)
Where to Buy Feldspar
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 Feldspar
长石是地壳中分布最广泛的矿物族群之一，包括多种宝石级成员，如月光石、日光石、拉长石和亚马逊石等。长石族矿物以其多样的颜色和光学效应著称，月光石的蓝色晕彩、日光石的砂金效应、拉长石的变彩效应均各具特色。作为岩浆岩、变质岩和沉积岩的重要组成矿物，长石在宝石学和地质学研究中均占有举足轻重的地位。
On this page
Jewelry Use
Durability
5/10
Science FYI Family
Frequently Asked Questions
What is Feldspar?
长石是地壳中分布最广泛的矿物族群之一，包括多种宝石级成员，如月光石、日光石、拉长石和亚马逊石等。长石族矿物以其多样的颜色和光学效应著称，月光石的蓝色晕彩、日光石的砂金效应、拉长石的变彩效应均各具特色。作为岩浆岩、变质岩和沉积岩的重要组成矿物，长石在宝石学和地质学研究中均占有举足轻重的地位。
What is the hardness of Feldspar?
Feldspar has a Mohs hardness of 6.0 to 6.5, making it moderate for use in jewelry.
What color is Feldspar?
Feldspar is primarily Various.
How much does Feldspar cost?
Feldspar falls into the Moderate ($50-500/ct) price range. Prices vary based on color, clarity, cut, and origin.
How do you care for Feldspar?
Feldspar is moderately durable and best suited for earrings, pendants, and brooches. Avoid ultrasonic cleaners and harsh chemicals.