Cobaltoan Calcite // 3.62 Lb.

This extraordinary specimen features a thick coating of rare Cobaltoan calcite on host rock, showcasing beautifully crystallized formations with unparalleled natural sparkle and luster. The vivid hot pink hue, the most striking we’ve seen in this species, is the result of cobalt ions substituting for calcium ions in the calcite's crystal lattice. Adding further intrigue, this piece originates from the Democratic Republic of Congo (DRC), a region known for its copper and cobalt mineralization, and includes velvety green malachite splotches that provide a stunning visual contrast to the vibrant pink calcite. A truly spectacular addition to any fine mineral collection.
Interesting Facts
Cobaltoan calcite’s bright pink hue is caused by cobalt “impurities,” making it a rare and prized mineral variety.
Malachite, a secondary copper mineral, adds a velvety green contrast to Cobaltoan calcite specimens, enhancing their visual appeal.
The DRC is renowned for its exceptional mineral specimens, particularly those featuring unique cobalt and copper combinations.
Features
Origin: Democratic Republic of Congo (DRC)
Material: Cobaltoan calcite with malachite on host rock
Condition: Excellent, with vibrant pigmentation and intact crystallization
Special Characteristics: Vivid hot pink calcite coating, sparkling luster, and contrasting malachite inclusions
Dimensions and Weight
Height        Length        Depth        Weight
3.625"        5.5"        2.375"        3.62 lb
Just in Astro West.