Crystal Opal
Embed This Widget
Add the script tag and a data attribute to embed this widget.
Embed via iframe for maximum compatibility.
<iframe src="https://gemfyi.com/iframe/entity/crystal-opal/" width="420" height="400" frameborder="0" style="border:0;border-radius:10px;max-width:100%" loading="lazy"></iframe>Paste this URL in WordPress, Medium, or any oEmbed-compatible platform.
https://gemfyi.com/entity/crystal-opal/Add a dynamic SVG badge to your README or docs.
[](https://gemfyi.com/entity/crystal-opal/)Use the native HTML custom element.
Add one script tag to your page:
<div data-gemfyi="entity" data-slug="crystal-opal"></div>
<script src="https://cdn.jsdelivr.net/npm/gemfyi-embed@1/dist/embed.min.js" defer></script>
Embed as an iframe:
<iframe src="https://gemfyi.com/iframe/entity/crystal-opal/?style=modern&theme=light" width="420" height="400" frameborder="0" loading="lazy" style="border:0;border-radius:10px;max-width:100%"></iframe>
Paste the URL in WordPress, Medium, or Ghost:
https://gemfyi.com/ja/gems/crystal-opal/
Shields.io-compatible SVG badge:
Web Component:
<gemfyi-entity slug="crystal-opal"></gemfyi-entity>
<script src="https://cdn.jsdelivr.net/npm/gemfyi-embed@1/dist/embed.min.js" defer></script>
Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
5.5 – 6.5
Specific Gravity
1.97 – 2.22
Crystal System
Amorphous
Luster
Vitreous
Cleavage
None
Fracture
Conchoidal
Color
white
Pleochroism
Absent
Mohs Hardness
| Mohs | Reference mineral | Crystal Opal |
|---|---|---|
| 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 Crystal Opal
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 Crystal Opal
クリスタルオパールは、遊色効果（プレイ・オブ・カラー）が際立つ透明から半透明のオパールです。本体色が無色に近いため遊色がより鮮明に見え、虹のような色彩変化を楽しめます。主にオーストラリアのクーバーペディやライトニングリッジから産出し、高品質な宝石として世界中で珍重されています。
On this page
Jewelry Use
Durability
4/10
Science FYI Family
Frequently Asked Questions
What is Crystal Opal?
クリスタルオパールは、遊色効果（プレイ・オブ・カラー）が際立つ透明から半透明のオパールです。本体色が無色に近いため遊色がより鮮明に見え、虹のような色彩変化を楽しめます。主にオーストラリアのクーバーペディやライトニングリッジから産出し、高品質な宝石として世界中で珍重されています。
What is the hardness of Crystal Opal?
Crystal Opal has a Mohs hardness of 5.5 to 6.5, making it moderate for use in jewelry.
What color is Crystal Opal?
Crystal Opal is primarily White.
How much does Crystal Opal cost?
Crystal Opal falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Crystal Opal?
Crystal Opal belongs to the Amorphous crystal system.