Imperial Topaz (A variety of topaz of orange, pinkish colours.)
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
8.0
Specific Gravity
3.49 – 3.57
Refractive Index
1.609 – 1.643
Crystal System
Orthorhombic
Cleavage
Perfect
Fracture
Uneven,Conchoidal
Color
yellow
Birefringence
0.008
Dispersion
0.014
Pleochroism
Yellow: definite - lemon-honey, straw-yellow; Red: strong - dark red, yellow, pink-red
Mohs Hardness
| Mohs | Reference mineral | Imperial Topaz (A variety of topaz of orange, pinkish colours.) |
|---|---|---|
| 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
Fine ($500-5,000/ct)
Where to Buy Imperial Topaz (A variety of topaz of orange, pinkish colours.)
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 Imperial Topaz (A variety of topaz of orange, pinkish colours.)
帝王托帕石是黄玉（托帕石）中最为珍贵的橙粉色至金橙色变体，颜色如夕阳般温暖华丽。真正的帝王托帕石必须产自巴西米纳斯吉拉斯州的奥鲁普雷图地区，其他地区产出的橙色黄玉一般不具备此称谓。帝王托帕石以其饱满的橙粉色调、优异的透明度和高折射率而备受珠宝界推崇，是黄玉家族中价值最高的品种，是十一月的重要生辰石。
On this page
Jewelry Use
Durability
9/10
Suitable for daily wear
Science FYI Family
Frequently Asked Questions
What is Imperial Topaz (A variety of topaz of orange, pinkish colours.)?
帝王托帕石是黄玉（托帕石）中最为珍贵的橙粉色至金橙色变体，颜色如夕阳般温暖华丽。真正的帝王托帕石必须产自巴西米纳斯吉拉斯州的奥鲁普雷图地区，其他地区产出的橙色黄玉一般不具备此称谓。帝王托帕石以其饱满的橙粉色调、优异的透明度和高折射率而备受珠宝界推崇，是黄玉家族中价值最高的品种，是十一月的重要生辰石。
What is the hardness of Imperial Topaz (A variety of topaz of orange, pinkish colours.)?
Imperial Topaz (A variety of topaz of orange, pinkish colours.) has a Mohs hardness of 8.0, making it excellent for use in jewelry.
What color is Imperial Topaz (A variety of topaz of orange, pinkish colours.)?
Imperial Topaz (A variety of topaz of orange, pinkish colours.) is primarily Yellow.
How much does Imperial Topaz (A variety of topaz of orange, pinkish colours.) cost?
Imperial Topaz (A variety of topaz of orange, pinkish colours.) falls into the Fine ($500-5,000/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Imperial Topaz (A variety of topaz of orange, pinkish colours.)?
Imperial Topaz (A variety of topaz of orange, pinkish colours.) belongs to the Orthorhombic crystal system.