Cobaltoan Dolomite - Democratic Republic of Congo



Cobaltoan Dolomite - Democratic Republic of Congo
Location: Kantanga, Democratic Republic of Congo
Size: 3.76 × 1.42 × 0.62 inches
Cobaltoan Dolomite is a rare and striking mineral that is primarily composed of dolomite, a sedimentary rock-forming mineral, with cobalt ion substitutions. The presence of cobalt imparts a vibrant pink to reddish hue, making this mineral particularly sought after by collectors and enthusiasts.
Originating from specific geological settings, cobaltoan dolomite is commonly found in regions rich in copper and cobalt deposits. Notable localities include the Democratic Republic of the Congo, where specimens display vivid colors and remarkable crystal formations.
In terms of its properties, cobaltoan dolomite is typically opaque and may exhibit a pearly luster on its surfaces. The unique coloration is due to cobalt's presence, while the structure remains consistent with that of standard dolomite, characterized by its rhombohedral crystal system.
Cobaltoan dolomite is not only valued for its aesthetic appeal but also for its geological significance. It can serve as an indicator of the conditions present during its formation, providing insights into the local mineralization processes.
For collectors, cobaltoan dolomite exemplifies the beauty and diversity found in mineral specimens, making it a noteworthy addition to any collection.
Note: Sometimes also called Cobaltoan Calcite. Most of the pieces are actually Dolomite and sometimes it is just called Salrose (pink stuff) as there are pieces that are hard to identify.