Carbonate Cyanotrichite on Limestone Matrix from Qinglong Mine, China

Dimension: 4.4cm x 2cm x 1cm
Weight: 8g / 40 carat
Locality: Qinglong Mine, Dachang Sb ore field, Qianxi'nan A.P., Guizhou Province, China
 
A velvety, shimmering Carbonate-Cyanotrichite partially covered a Limestone matrix from the famous Qinglong Mine of China.  The shimmering turfs of Carbonate-Cyanotrichite displays in differenct color zoning, from vivid royal blue to attractive pastel blue color.  
 
Carbonate-Cyanotrichite is a rare minerals, a secondary copper mineral found sparsely in the oxidation zones of copper-bearing ore bodies.  The name actually comes from the Greek for "blue" and "hair", for obvious reasons, as the blue crystals have this acicular (hair-like) form.