Esperite
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
5.0 – 5.5
Specific Gravity
4.28 – 4.42
Refractive Index
1.76 – 1.774
Crystal System
Monoclinic
Luster
Greasy,Dull (Earthy)
Cleavage
Distinct,Poor
Fracture
Conchoidal
Color
various
Mohs Hardness
| Mohs | Reference mineral | Esperite |
|---|---|---|
| 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 Esperite
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 Esperite
埃斯珀石是一种罕见的钙铅锌硅酸盐矿物，在紫外线照射下会产生明亮的黄绿色荧光，这一特性使其在矿物收藏界颇具吸引力。该矿物呈无色至白色，通常以细小晶体或块状形式产出，主要发现于美国新泽西州的富兰克林矿区，与其他荧光矿物共生。由于产量极少，主要作为矿物标本供学术研究和收藏使用。
On this page
Jewelry Use
Durability
4/10
Science FYI Family
Frequently Asked Questions
What is Esperite?
埃斯珀石是一种罕见的钙铅锌硅酸盐矿物，在紫外线照射下会产生明亮的黄绿色荧光，这一特性使其在矿物收藏界颇具吸引力。该矿物呈无色至白色，通常以细小晶体或块状形式产出，主要发现于美国新泽西州的富兰克林矿区，与其他荧光矿物共生。由于产量极少，主要作为矿物标本供学术研究和收藏使用。
What is the hardness of Esperite?
Esperite has a Mohs hardness of 5.0 to 5.5, making it moderate for use in jewelry.
What color is Esperite?
Esperite is primarily Various.
How much does Esperite cost?
Esperite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Esperite?
Esperite belongs to the Monoclinic crystal system.