5ddbfns ((KOTTIGITE, PARASYMPLESITE)), $10 MINIMUM BID, Ojuela Mine, Mapimi, Durango, Mexico, 5 x 4 x 3 cm, Cabinet, | |
Here is a specimen from material that came out 30 years ago. Several vugs have sprays of grey crystals of the rare arsenate mineral Kottigite from the Kottigite-Parasymplesite series. It is actually impossible to differentiate the two without analysis. |