Staurolite

Fe2Al9Si4O23(OH)

Add one script tag to your page:

<div data-mineralfyi="entity" data-slug="staurolite"></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/staurolite/?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/es/mineral/staurolite/

Shields.io-compatible SVG badge:

Staurolite badge ![Staurolite](https://mineralfyi.com/badge/entity/staurolite.svg)

Web Component:

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

Staurolite is famous for its cruciform twinned crystals, which form cross-shaped penetration twins. These natural crosses have been collected as good luck charms for centuries. It is an important metamorphic indicator mineral.

Sistema Cristalino Monoclinic
Clase Mineral 09 Silicates
Dureza Mohs 7.0-7.5
Gravedad Específica 3.65-3.77
Color Dark reddish-brown to black
Brillo Vitreous
Raya Gray to white
Exfoliación Poor {010}
Fractura Subconchoidal
Transparencia Translucent
Hábito Cristalino Prismatic, cruciform twins

Dureza Mohs

Mohs Hardness: 7,0 – 7,5
1 Soft10 Hard

Sistema Cristalino

Monoclinic

Frequently Asked Questions

What is the hardness of Staurolite?
Staurolite has a Mohs hardness of 7.0-7.5.
What crystal system does Staurolite belong to?
Staurolite crystallizes in the Monoclinic crystal system.
What color is Staurolite?
Staurolite is typically Dark reddish-brown to black.
What type of luster does Staurolite have?
Staurolite exhibits a Vitreous luster.
What is the chemical formula of Staurolite?
The chemical formula of Staurolite is Fe2Al9Si4O23(OH).