Legrandite
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
4.5 – 5.0
Specific Gravity
3.98 – 4.04
Refractive Index
1.702 – 1.74
Crystal System
Monoclinic
Luster
Vitreous
Cleavage
Poor
Fracture
Uneven
Color
various
Birefringence
0.06
Pleochroism
Yellow to colourless
Mohs Hardness
| Mohs | Reference mineral | Legrandite |
|---|---|---|
| 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 Legrandite
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 Legrandite
ルグランダイトは、鮮やかな黄色から黄橙色の亜鉛ヒ素塩鉱物で、単斜晶系の細長い柱状・針状結晶として産し、ガラス光沢を示します。メキシコのソノラ州ビジャルデコスに産するファリュンズ鉱床が世界最高品質の産地として知られ、黄色い結晶の房がガラス状の白い方解石と共生する標本は、世界中のコレクターに垂涎の的です。透明度の高い黄色の切り石はコレクター宝石として希少であり、砒素鉱物特有の毒性にも注意が必要です。
On this page
Jewelry Use
Durability
3/10
Science FYI Family
Frequently Asked Questions
What is Legrandite?
ルグランダイトは、鮮やかな黄色から黄橙色の亜鉛ヒ素塩鉱物で、単斜晶系の細長い柱状・針状結晶として産し、ガラス光沢を示します。メキシコのソノラ州ビジャルデコスに産するファリュンズ鉱床が世界最高品質の産地として知られ、黄色い結晶の房がガラス状の白い方解石と共生する標本は、世界中のコレクターに垂涎の的です。透明度の高い黄色の切り石はコレクター宝石として希少であり、砒素鉱物特有の毒性にも注意が必要です。
What is the hardness of Legrandite?
Legrandite has a Mohs hardness of 4.5 to 5.0, making it relatively soft for use in jewelry.
What color is Legrandite?
Legrandite is primarily Various.
How much does Legrandite cost?
Legrandite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Legrandite?
Legrandite belongs to the Monoclinic crystal system.