Powellite
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
3.5 – 4.0
Specific Gravity
4.23
Refractive Index
1.974 – 1.984
Crystal System
Tetragonal
Cleavage
Indistinct
Fracture
Uneven
Color
various
Pleochroism
In deeply colored specimens: blue - green
Mohs Hardness
| Mohs | Reference mineral | Powellite |
|---|---|---|
| 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 Powellite
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 Powellite
钙钼华是一种含钙的钼酸盐矿物，以其浓郁的金黄色、橙黄色至褐色和强烈的金刚石光泽著称。钙钼华产于钼矿床的氧化带，在伟晶岩和热液矿脉中也有发现，与辉钼矿的氧化产物有关。透明的钙钼华晶体具有极高的折射率，切磨后宝石光泽耀眼，但因硬度较低（莫氏3.5-4）和完全解理，宝石级切割难度较大。宝石级钙钼华标本来自印度（产于玄武岩气孔中的蓝方解石伴生矿物），在专业矿物收藏市场中属于较为珍贵的品种。
On this page
Jewelry Use
Durability
2/10
Science FYI Family
Frequently Asked Questions
What is Powellite?
钙钼华是一种含钙的钼酸盐矿物，以其浓郁的金黄色、橙黄色至褐色和强烈的金刚石光泽著称。钙钼华产于钼矿床的氧化带，在伟晶岩和热液矿脉中也有发现，与辉钼矿的氧化产物有关。透明的钙钼华晶体具有极高的折射率，切磨后宝石光泽耀眼，但因硬度较低（莫氏3.5-4）和完全解理，宝石级切割难度较大。宝石级钙钼华标本来自印度（产于玄武岩气孔中的蓝方解石伴生矿物），在专业矿物收藏市场中属于较为珍贵的品种。
What is the hardness of Powellite?
Powellite has a Mohs hardness of 3.5 to 4.0, making it relatively soft for use in jewelry.
What color is Powellite?
Powellite is primarily Various.
How much does Powellite cost?
Powellite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Powellite?
Powellite belongs to the Tetragonal crystal system.