ultraohuita

Ultraohuita is a rare and enigmatic mineral discovered in the late 20th century. It was first identified in the Ohuita mine in the state of Oaxaca, Mexico, and is named after the mine and the nearby Ohuita village. Ultraohuita is a member of the zeolite group, characterized by its complex crystal structure and unique chemical composition. It is typically found in low-temperature hydrothermal veins, often associated with other zeolite minerals such as chabazite and analcime.

The mineral exhibits a vibrant blue color, which is a result of the presence of copper within its structure. This distinctive coloration has made ultraohuita a sought-after specimen for collectors. Under certain lighting conditions, ultraohuita can display a phenomenon known as "ultraohuitization," where the mineral's color appears to shift and change, adding to its allure.

Ultraohuita's chemical formula is (Na,K)2-3(Ca,Na)2[Al12Si12O36]·12H2O. Its crystal system is monoclinic, and it typically forms prismatic crystals with well-developed faces. The mineral has a Mohs hardness of approximately 4, making it relatively soft and susceptible to damage. Its density is around 2.2 g/cm³.

Despite its rarity and aesthetic appeal, ultraohuita has limited practical applications due to its softness and the challenges associated with its synthesis. However, its unique properties and striking appearance continue to make it a fascinating subject for mineralogists and collectors alike. The Ohuita mine, where ultraohuita was first discovered, remains an important site for the study and collection of rare minerals.