Pyrope
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Deep blood-red in color, pyrope is the member of the garnet group whose hue is produced by iron and chromium. It frequently occurs as perfectly rounded, water-worn crystals known as anthill garnets, so called because ants excavate them to the surface in Arizona. Pyrope forms in peridotites, kimberlites, and high-pressure metamorphic rocks, and is recovered from Bohemia in the Czech Republic, South Africa, Australia, and the American Southwest. Its rich red rivals that of ruby, and the stone has been set in jewelry since the Middle Ages, most famously in the Bohemian garnet pieces of the eighteenth and nineteenth centuries. With a Mohs hardness of 7 to 7.5 and good durability, pyrope is well suited to everyday wear.
Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
7.0 – 7.5
Specific Gravity
3.62 – 3.87
Refractive Index
1.72 – 1.756
Crystal System
Isometric
Luster
Vitreous
Cleavage
Indistinct
Fracture
Conchoidal
Color
various
Dispersion
0.022
Pleochroism
Absent
Mohs Hardness
| Mohs | Reference mineral | Pyrope |
|---|---|---|
| 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
Moderate ($50-500/ct)
Where to Buy Pyrope
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 Pyrope
パイロープ（苦礬柘榴石）は、鉄とクロムによる深血赤色が特徴のガーネット族の一鉱物で、アリゾナ州ではアリの巣に露出することから「アリヤマアリガーネット（アントヒルガーネット）」とも呼ばれます。ペリドタイト・キンバーライト・高圧変成岩に産し、チェコ（ボヘミア）・南アフリカ・オーストラリア・米国南西部が産地です。ルビーに匹敵する深い赤色は中世から宝飾品に珍重され、最高品質のボヘミア産パイロープは長く欧州王室御用達の宝石でした。
On this page
Jewelry Use
Durability
7/10
Suitable for daily wear
Science FYI Family
Frequently Asked Questions
What is Pyrope?
パイロープ（苦礬柘榴石）は、鉄とクロムによる深血赤色が特徴のガーネット族の一鉱物で、アリゾナ州ではアリの巣に露出することから「アリヤマアリガーネット（アントヒルガーネット）」とも呼ばれます。ペリドタイト・キンバーライト・高圧変成岩に産し、チェコ（ボヘミア）・南アフリカ・オーストラリア・米国南西部が産地です。ルビーに匹敵する深い赤色は中世から宝飾品に珍重され、最高品質のボヘミア産パイロープは長く欧州王室御用達の宝石でした。
What is the hardness of Pyrope?
Pyrope has a Mohs hardness of 7.0 to 7.5, making it excellent for use in jewelry.
What color is Pyrope?
Pyrope is primarily Various.
How much does Pyrope cost?
Pyrope falls into the Moderate ($50-500/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Pyrope?
Pyrope belongs to the Isometric crystal system.