---
title: "Pyrope: meaning in gemology"
description: "Pyrope is a garnet species made of magnesium, aluminum and silicon. It is usually pink to orange-red or brown."
url: https://digitalgemology.com/learn/glossary/pyrope
image: https://digitalgemology.com/img/og-digital-gemology.png?v=d224fb01
---

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[Glossary](https://digitalgemology.com/learn/glossary) · Colored gemstones

# Pyrope

Also called pyrope garnet

Pyrope is a garnet species made of magnesium, aluminum and silicon. It is usually pink to orange-red or brown.

## Properties

**Gemological properties of pyrope**

| Refractive index | 1.73 to 1.766 |
| --- | --- |
| Birefringence | None (singly refractive) |
| Optic character | Singly refractive |
| Dispersion | 0.022 |
| Specific gravity | 3.65 to 3.87 |
| Hardness (Mohs) | 7 to 7.5 |
| Crystal system | Cubic |
| Pleochroism | None |
| Absorption spectrum | Almandine (iron) band, often visible in pyrope, 576 nm (Fe); almandine (iron) band, often visible in pyrope, 526 nm (Fe); almandine (iron) band, often visible in pyrope, 505 nm (Fe); narrow weak doublet where Cr masks the almandine spectrum, 685 to 687 nm (Cr); possible weak line, 671 nm (Cr); possible weak line, 650 nm (Cr); broad band about 100 nm wide, may be visible, 570 nm |

Published values. They change a little from stone to stone. Our tools do not model pyrope yet. Sources: [International Gem Society](https://www.gemsociety.org/article/pyrope-garnet/) · [Gemdat](https://www.gemdat.org/gem-3321.html)

## In more detail

Pyrope and almandine range in color from purple to orangy red. Red garnets like pyrope typically have no eye-visible inclusions. Like many garnets, a pyrope can be a chemical mixture with another garnet species.

## Related terms

- [Garnet](https://digitalgemology.com/learn/glossary/garnet): Garnet is a group of closely related mineral species. They share the same crystal structure but differ in chemical composition.
- [Almandine](https://digitalgemology.com/learn/glossary/almandine): Almandine is a garnet species made of iron, aluminum and silicon. It is typically brownish to purplish red.
- [Spessartine](https://digitalgemology.com/learn/glossary/spessartine): Spessartine is an orange garnet species made of manganese, aluminum and silicon. Its hues are warm: yellow, orange, red or brown.
- [Gem species](https://digitalgemology.com/learn/glossary/gem-species): A gem species is a mineral with one chemical composition and one crystal structure, such as corundum, beryl or quartz.

[All 369 terms](https://digitalgemology.com/learn/glossary)