Dumortierite

Add one script tag to your page:

<div data-gemfyi="entity" data-slug="dumortierite"></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/dumortierite/?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/ko/gems/dumortierite/

Shields.io-compatible SVG badge:

![Dumortierite](https://gemfyi.com/badge/entity/dumortierite.svg)

Web Component:

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

Physical & Optical Properties

Category Semi-Precious Gems

Mohs Hardness 7.0 – 8.5

Specific Gravity 3.26 – 3.41

Refractive Index 1.669 – 1.723

Crystal System Orthorhombic

Luster Vitreous

Cleavage Good

Fracture Conchoidal

Color various

Birefringence 0.011

Pleochroism Strong trichroism for rare red-brown crystals: black - red brown - brown

Mohs Hardness

Mohs Hardness: 7.0 – 8.5

1 Soft10 Hard

Crystal System

Value & Market

Price Tier Moderate ($50-500/ct)

Where to Buy Dumortierite

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 Dumortierite

뒤모르티에라이트는 짙은 청색에서 보라색을 띠는 붕소 규산염 광물입니다. 일반적으로 석영 속에 섬유상 집합체로 내포되어 발견되며, 이 경우 '뒤모르티에라이트 쿼츠'로 불립니다. 아름다운 청색 카보숑으로 가공되어 주얼리에 사용되며, 네바다, 브라질, 나미비아 등에서 산출됩니다. 내화 세라믹 소재로도 활용됩니다.