Girasol
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
5.5 – 6.5
Specific Gravity
1.98 – 2.5
Refractive Index
1.37 – 1.52
Crystal System
Amorphous
Cleavage
None
Fracture
Conchoidal,Splintery
Color
various
Pleochroism
Absent
Mohs Hardness
| Mohs | Reference mineral | Girasol |
|---|---|---|
| 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 Girasol
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 Girasol
ジラソル（ジラソールオパール）は、乳白色の地色にブルーのアデュラレッセンス（内部のぼんやりした光彩）が現れる特殊なオパールです。「ひまわり」を意味するイタリア語から名付けられ、光に向けると内部が青白く輝きます。ブラジルや東南アジアが産地で、月長石に似た効果を持ちます。
On this page
Jewelry Use
Durability
4/10
Science FYI Family
Frequently Asked Questions
What is Girasol?
ジラソル（ジラソールオパール）は、乳白色の地色にブルーのアデュラレッセンス（内部のぼんやりした光彩）が現れる特殊なオパールです。「ひまわり」を意味するイタリア語から名付けられ、光に向けると内部が青白く輝きます。ブラジルや東南アジアが産地で、月長石に似た効果を持ちます。
What is the hardness of Girasol?
Girasol has a Mohs hardness of 5.5 to 6.5, making it moderate for use in jewelry.
What color is Girasol?
Girasol is primarily Various.
How much does Girasol cost?
Girasol falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Girasol?
Girasol belongs to the Amorphous crystal system.