Taaffeite (Magnesiotaaffeite)

Add one script tag to your page:

<div data-gemfyi="entity" data-slug="taaffeite-magnesiotaaffeite"></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/taaffeite-magnesiotaaffeite/?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/th/gems/taaffeite-magnesiotaaffeite/

Shields.io-compatible SVG badge:

Taaffeite (Magnesiotaaffeite) badge ![Taaffeite (Magnesiotaaffeite)](https://gemfyi.com/badge/entity/taaffeite-magnesiotaaffeite.svg)

Web Component:

<gemfyi-entity slug="taaffeite-magnesiotaaffeite"></gemfyi-entity>
<script src="https://cdn.jsdelivr.net/npm/gemfyi-embed@1/dist/embed.min.js" defer></script>

Physical & Optical Properties

Mohs Hardness 8.0 – 8.5
Specific Gravity 3.6 – 3.62
Refractive Index 1.716 – 1.73
Crystal System Hexagonal
Luster Vitreous
Fracture Conchoidal
Color various
Birefringence 0.004
Dispersion 0.02
Pleochroism Weak

Mohs Hardness

Mohs Hardness: 8.0 – 8.5
1 Soft10 Hard

Crystal System

a a c Hexagonal a = b ≠ c, α = β = 90°, γ = 120°

Value & Market

Price Tier Fine ($500-5,000/ct)

Where to Buy Taaffeite (Magnesiotaaffeite)

About Taaffeite (Magnesiotaaffeite)

Taaffeite is one of the world's rarest gemstones, a beryllium magnesium aluminum oxide discovered in 1945 by Count Edward Charles Richard Taaffe who noticed that a stone he had purchased as spinel had anomalous optical properties due to its double refraction. It displays colors from colorless and pale mauve to green and purple, with most material coming from Sri Lanka and Tanzania. With fewer than 50 known faceted specimens in the world, taaffeite is among the rarest gems ever described.

Jewelry Use

Durability 9/10

Suitable for daily wear

Science FYI Family

Frequently Asked Questions

What is Taaffeite (Magnesiotaaffeite)?
Taaffeite is one of the world's rarest gemstones, a beryllium magnesium aluminum oxide discovered in 1945 by Count Edward Charles Richard Taaffe who noticed that a stone he had purchased as spinel had anomalous optical properties due to its double refraction. It displays colors from colorless and pa
What is the hardness of Taaffeite (Magnesiotaaffeite)?
Taaffeite (Magnesiotaaffeite) has a Mohs hardness of 8.0 to 8.5, making it excellent for use in jewelry.
What color is Taaffeite (Magnesiotaaffeite)?
Taaffeite (Magnesiotaaffeite) is primarily Various.
How much does Taaffeite (Magnesiotaaffeite) cost?
Taaffeite (Magnesiotaaffeite) 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 Taaffeite (Magnesiotaaffeite)?
Taaffeite (Magnesiotaaffeite) belongs to the Hexagonal crystal system.

More Semi-Precious Gems Gems