# Tetrahedrite - Black Pine mine, Granite Co., Montana, USA

- By: Ivar Leidus
- Date: 2021-02-05
- Classification: Photograph
- Museum: [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Tetrahedrite_-_Black_Pine_mine,_Granite_Co.,_Montana,_USA.jpg)
- Rights: [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0)
- Picture: https://invisiblenetwork.ai/thumbs/commons/thumb/c/c6/Tetrahedrite_-_Black_Pine_mine%2C_Granite_Co.%2C_Montana%2C_USA.jpg/1920px-Tetrahedrite_-_Black_Pine_mine%2C_Granite_Co.%2C_Montana%2C_USA.jpg
- Who can see it: Kids profiles and older (museums give no ratings; placed by Invisible Network from the museum's own words)

Crystals of tetrahedrite up to 2.2 cm in size forming a cluster (3.5 × 2.5 × 2.5 cm) with quartz and micro mimetite. Found from Black Pine mine, Granite County, Montana, USA