Images

High-definition image of spodumene specimen with fibrous texture and light coloration.

USGS mineral specimen of stromatolites showing preserved algal structures. High-definition image highlighting layered texture and fossil patterns.

Isolated specimen featuring sylvite, halite, and polyhalite. High-definition image showing crystal textures and varied coloration.

Isolated tetrahedrite specimen with silver content. High-definition image showing granular texture and metallic luster.

High-definition image of argentiferous tetrahedrite specimen with dark coloration and metallic inclusions.

 USGS mineral specimen of argentiferous tetrahedrite. High-definition image showing granular structure and metallic sheen.

Isolated rutile specimen from the USGS mineral collection. High-definition image showing prismatic structure and reddish-brown color.

Isolated trona specimen from the USGS mineral collection. High-definition image showing fibrous texture and pale coloration.

High-definition image of wolframite specimen with granular texture and black coloration.

 USGS mineral specimen of wolframite. High-definition image showing layered structure and metallic inclusions.

High-definition image of wolframite specimen with fine-grained texture and dark luster.

 Isolated vanadinite specimen from the USGS mineral collection. High-definition image showing hexagonal crystals and red-orange color.

High-definition image of vanadium specimen with fine-grained texture and silvery color.

Isolated zinc specimen from the USGS mineral collection. High-definition image showing metallic luster and smooth surface.

High-definition image of zincite specimen with reddish-orange color and granular texture.

Isolated zirconium metal specimen from the USGS mineral collection. High-definition image showing metallic surface and smooth texture.

High-definition image of zirconium metal specimen with fine-grained texture and silvery color.

The List of Critical Minerals Informs: 

• Supply chain risk mitigation 

• Federal policy and strategy 

• Stockpiles 

• Permitting Processes 

Map showing locations of placer mines in the Alaska Resource Data File (ARDF, red crosses), primary mineral districts that contain targeted critical minerals (black boxes) and locations that were sampled by the USGS in 2022 through 2024 (yellow stars).

Key Minerals in Data Centers

Conventional hydrothermal resources occur below the ground where three ingredients combine: heat, water and permeable rock. When heated water or steam is trapped in a porous rock below a layer of less permeable rock, a hydrothermal reservoir is formed.