Topaz

Al₂SiO₄(F,OH)₂

Add one script tag to your page:

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

Embed as an iframe:

<iframe src="https://mineralfyi.com/iframe/entity/topaz/?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://mineralfyi.com/fr/mineral/topaz/

Shields.io-compatible SVG badge:

![Topaz](https://mineralfyi.com/badge/entity/topaz.svg)

Web Component:

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

Topaz is the reference mineral for hardness 8 on the Mohs scale. It forms in granite and pegmatite veins and is prized as a gemstone. Imperial topaz (orange-pink) from Ouro Preto, Brazil, is the most valuable variety.

Système Cristallin	Orthorhombic
Classe Minérale	09 Silicates
Dureté Mohs	8.0
Densité	3.49-3.57
Couleur	Colorless, yellow, blue, pink, orange
Éclat	Vitreous
Trait	Colorless
Clivage	Perfect {001}
Cassure	Conchoidal to uneven
Transparence	Transparent
Habitus Cristallin	Prismatic