Vivianite
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Physical & Optical Properties
Category
Collector Gems
Mohs Hardness
1.5 – 2.0
Specific Gravity
2.64 – 2.7
Refractive Index
1.56 – 1.64
Crystal System
Monoclinic
Luster
Vitreous,Pearly,Dull (Earthy)
Cleavage
Perfect
Color
various
Birefringence
0.054
Pleochroism
Anomalous plechroism is strong with colours deep blue/pale yellowish green/yellowish green.
Mohs Hardness
| Mohs | Reference mineral | Vivianite |
|---|---|---|
| 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 Vivianite
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About Vivianite
蓝铁矿是一种含水磷酸铁矿物，新鲜时无色至淡绿色，随着亚铁氧化为铁，颜色逐渐加深为深蓝色至蓝绿色乃至深靛蓝色，这种颜色变化使其在宝石学中颇为特殊。宝石级标本较为罕见，但其色泽深邃鲜艳，深受矿物收藏家喜爱。产自巴西、玻利维亚、德国和美国，常与铁矿床伴生。
On this page
Jewelry Use
Durability
1/10
Science FYI Family
Frequently Asked Questions
What is Vivianite?
蓝铁矿是一种含水磷酸铁矿物，新鲜时无色至淡绿色，随着亚铁氧化为铁，颜色逐渐加深为深蓝色至蓝绿色乃至深靛蓝色，这种颜色变化使其在宝石学中颇为特殊。宝石级标本较为罕见，但其色泽深邃鲜艳，深受矿物收藏家喜爱。产自巴西、玻利维亚、德国和美国，常与铁矿床伴生。
What is the hardness of Vivianite?
Vivianite has a Mohs hardness of 1.5 to 2.0, making it relatively soft for use in jewelry.
What color is Vivianite?
Vivianite is primarily Various.
How much does Vivianite cost?
Vivianite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Vivianite?
Vivianite belongs to the Monoclinic crystal system.