nauhurit

Nauhurit is a rare and enigmatic mineral that was first discovered in the late 19th century in the Naukluft Mountains of Namibia. It is named after the mountains where it was found, and is known for its distinctive green color and unique crystal structure. Nauhurit is a complex silicate mineral, with the chemical formula Na2Ca2(Si4O10)2(OH)2. It crystallizes in the monoclinic system, and its crystals are typically prismatic or tabular, with a perfect cleavage in one direction.

Nauhurit is relatively soft, with a Mohs hardness of 5 to 5.5, and has a specific gravity of approximately 2.9. It is often found in association with other minerals such as calcite, quartz, and various zeolites. The mineral is not commonly found in large quantities, and its rarity contributes to its high value among collectors.

The green color of nauhurit is due to the presence of iron impurities within its structure. This coloration is often described as a vibrant, almost emerald-like green, which has made nauhurit a popular choice for use in jewelry and decorative items. Despite its rarity and aesthetic appeal, nauhurit is not widely studied due to its limited availability and the challenges associated with its extraction and processing.