Reviews
This Specimen has been sold.
HERE ARE SOME OTHER SIMILAR FOSSILS FOR SALE
3.2" Ankerite Crystals with Sphalerite and Pyrite - Colorado
This specimen contains pearly ankerite crystals, covered by a light brown mineral coating. Small lustrous, double-sided sphalerite crystals can be found around the entire specimen as well, breaking free between the rhombohedral ankerite crystals. When looking closer, while fewer in numbers, pyrite cubes can be found scattered throughout the specimen as well.
Ankerite is a magnesium-rich mineral with a chemical formula of Ca(Fe2+,Mg)(CO3)2. As a mineral of the Dolomite Group, ankerite typically forms a crystal structure similar to that of rhombohedral calcite. The crystals often have a pearly white luster but sometimes possess a light yellow-brown coating, depending on iron content. It forms associations most often with pyrite, sphalerite, and quartz.
SPECIES
Ankerite, Spahlerite & Pyrite
LOCATION
Eagle Mine, Gilman, Colorado
SIZE
3.2" long, 2.05" wide
CATEGORY
ITEM
#44653
