Lazulite
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
5.5
Specific Gravity
3.04 – 3.17
Refractive Index
1.604 – 1.646
Crystal System
Monoclinic
Luster
Vitreous
Cleavage
Indistinct
Fracture
Uneven,Splintery
Color
various
Birefringence
0.031
Dispersion
0.014
Pleochroism
Transparent crystals show a strong pleochroism: colorless - light blue - dark (violet) blue
Mohs Hardness
| Mohs | Reference mineral | Lazulite |
|---|---|---|
| 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 Lazulite
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 Lazulite
天蓝石是一种蓝色至蓝绿色的磷酸盐矿物，以其鲜艳的天蓝色调而得名。这种颜色由铁和镁的含量决定，颜色越蓝则铁含量越高。天蓝石通常呈楔形或短柱状晶体，有时形成致密块状集合体。它产于富铝的变质岩中，也见于花岗岩伟晶岩中。由于晶体通常较小，宝石级天蓝石极为罕见，深受矿物收藏家珍视。天蓝石与蓝铜矿等矿物有时会被混淆，但其特有的结晶习性和磷酸盐成分可加以区分。
On this page
Jewelry Use
Durability
4/10
Science FYI Family
Frequently Asked Questions
What is Lazulite?
天蓝石是一种蓝色至蓝绿色的磷酸盐矿物，以其鲜艳的天蓝色调而得名。这种颜色由铁和镁的含量决定，颜色越蓝则铁含量越高。天蓝石通常呈楔形或短柱状晶体，有时形成致密块状集合体。它产于富铝的变质岩中，也见于花岗岩伟晶岩中。由于晶体通常较小，宝石级天蓝石极为罕见，深受矿物收藏家珍视。天蓝石与蓝铜矿等矿物有时会被混淆，但其特有的结晶习性和磷酸盐成分可加以区分。
What is the hardness of Lazulite?
Lazulite has a Mohs hardness of 5.5, making it moderate for use in jewelry.
What color is Lazulite?
Lazulite is primarily Various.
How much does Lazulite cost?
Lazulite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Lazulite?
Lazulite belongs to the Monoclinic crystal system.