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
サイデライトは炭酸鉄鉱物で、黄褐色・赤褐色・または緑みがかった色合いと劈開面のガラス質から真珠様の光沢を示し、菱面体晶系の結晶や腎臓状の塊を形成することがあります。堆積性鉄鉱床、熱水鉱脈、変成岩中に産する重要な鉄鉱石で、ポルトガルのパナスケイラ鉱山やアルプスには優れた結晶標本があります。宝石品質の透明な結晶はコレクター向けの珍しい石としてファセット加工されることがあります。
On this page
Jewelry Use
Durability
2/10
Science FYI Family
Frequently Asked Questions
What is Siderite?
サイデライトは炭酸鉄鉱物で、黄褐色・赤褐色・または緑みがかった色合いと劈開面のガラス質から真珠様の光沢を示し、菱面体晶系の結晶や腎臓状の塊を形成することがあります。堆積性鉄鉱床、熱水鉱脈、変成岩中に産する重要な鉄鉱石で、ポルトガルのパナスケイラ鉱山やアルプスには優れた結晶標本があります。宝石品質の透明な結晶はコレクター向けの珍しい石としてファセット加工されることがあります。
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.