Siderite
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
3.5 – 4.5
Specific Gravity
3.83 – 3.89
Refractive Index
1.633 – 1.875
Crystal System
Trigonal
Luster
Vitreous
Cleavage
Perfect
Fracture
Uneven
Color
various
Birefringence
0.24
Pleochroism
Nil
Mohs Hardness
| Mohs | Reference mineral | Siderite |
|---|---|---|
| 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 Siderite
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 Siderite
菱铁矿是一种铁碳酸盐矿物，呈黄棕色、红棕色或绿色，以其菱面体晶体形态和特征性珍珠光泽著称。宝石级菱铁矿较为罕见，但其温暖的色调和良好的透明度使其在宝石收藏领域颇具吸引力。主要产地包括西班牙、英国、德国和美国，亦是重要的铁矿石来源之一。
On this page
Jewelry Use
Durability
2/10
Science FYI Family
Frequently Asked Questions
What is Siderite?
菱铁矿是一种铁碳酸盐矿物，呈黄棕色、红棕色或绿色，以其菱面体晶体形态和特征性珍珠光泽著称。宝石级菱铁矿较为罕见，但其温暖的色调和良好的透明度使其在宝石收藏领域颇具吸引力。主要产地包括西班牙、英国、德国和美国，亦是重要的铁矿石来源之一。
What is the hardness of Siderite?
Siderite has a Mohs hardness of 3.5 to 4.5, making it relatively soft for use in jewelry.
What color is Siderite?
Siderite is primarily Various.
How much does Siderite cost?
Siderite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Siderite?
Siderite belongs to the Trigonal crystal system.