Hardystonite
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
3.0 – 4.0
Specific Gravity
3.396 – 3.443
Crystal System
Tetragonal
Cleavage
Good,Poor
Color
various
Mohs Hardness
| Mohs | Reference mineral | Hardystonite |
|---|---|---|
| 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 Hardystonite
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 Hardystonite
ハーディストナイトは、カルシウム亜鉛珪酸塩鉱物（Ca₂ZnSi₂O₇）で、紫外線下で明るい青白色の蛍光を示す鉱物として知られています。ニュージャージー州フランクリン鉱山が代表的な産地で、白色の粒状または塊状で産出します。蛍光鉱物コレクターに非常に人気があります。
On this page
Jewelry Use
Durability
2/10
Science FYI Family
Frequently Asked Questions
What is Hardystonite?
ハーディストナイトは、カルシウム亜鉛珪酸塩鉱物（Ca₂ZnSi₂O₇）で、紫外線下で明るい青白色の蛍光を示す鉱物として知られています。ニュージャージー州フランクリン鉱山が代表的な産地で、白色の粒状または塊状で産出します。蛍光鉱物コレクターに非常に人気があります。
What is the hardness of Hardystonite?
Hardystonite has a Mohs hardness of 3.0 to 4.0, making it relatively soft for use in jewelry.
What color is Hardystonite?
Hardystonite is primarily Various.
How much does Hardystonite cost?
Hardystonite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Hardystonite?
Hardystonite belongs to the Tetragonal crystal system.