It's important to note that excessive exposure to light can lead to fading of the tenebrescent effect in hackmanite
are a striking example of naturally crystallized hematite
Congolese Barite is well known for its striking habits and warm coloration
Small white botryoidal to druzy mineral accents sit between the golden Barite blades
where gypsum-rich clay deposits connected to the ancient Lake Agassiz basin produced unusually warm amber
Hanford Glass - Specimen zinc sulfide crystal It's important to note thatMined from: Hanford Site area, near Richland, Benton County, Washington, USA Description: This one of a kind Hanford glass specimen features a brighter translucent yellow body with milky internal zones, glossy surfaces, and dramatic curved fracture patterns. The piece has a raw, sculptural form with sharp broken edges, conchoidal chips, ripple marks, and layered flow like textures that catch the light from different angles. Its color ranges from pale