Sellaite
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
5.0 – 5.5
Specific Gravity
3.14 – 3.16
Refractive Index
1.378 – 1.39
Crystal System
Tetragonal
Luster
Vitreous
Cleavage
Distinct
Fracture
Conchoidal
Color
various
Birefringence
0.01
Mohs Hardness
| Mohs | Reference mineral | Sellaite |
|---|---|---|
| 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 Sellaite
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 Sellaite
セライトは稀なフッ化マグネシウム鉱物で、熱水鉱脈や火山噴気孔に無色から白色の正方晶系の柱状結晶を形成し、ガラス質から真珠様の光沢を持ちます。イタリアのピエモンテ州のセッラ渓谷で最初に記載され、ヴェスヴィオ溶岩や蒸発岩堆積物にも産出します。標本は主として学術的な関心の対象ですが、透明な結晶は時として鉱物コレクター向けにファセット加工されることもあります。
On this page
Jewelry Use
Durability
4/10
Science FYI Family
Frequently Asked Questions
What is Sellaite?
セライトは稀なフッ化マグネシウム鉱物で、熱水鉱脈や火山噴気孔に無色から白色の正方晶系の柱状結晶を形成し、ガラス質から真珠様の光沢を持ちます。イタリアのピエモンテ州のセッラ渓谷で最初に記載され、ヴェスヴィオ溶岩や蒸発岩堆積物にも産出します。標本は主として学術的な関心の対象ですが、透明な結晶は時として鉱物コレクター向けにファセット加工されることもあります。
What is the hardness of Sellaite?
Sellaite has a Mohs hardness of 5.0 to 5.5, making it moderate for use in jewelry.
What color is Sellaite?
Sellaite is primarily Various.
How much does Sellaite cost?
Sellaite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Sellaite?
Sellaite belongs to the Tetragonal crystal system.