1.55" Purple Coquimbite Formation - Alcaparrosa Mine, Chile

This is a 1.55" wide section of purple coquimbite, collected from the Alcaparrosa Mine in Antofagasta, Chile. It was broken away from a large, massive formation of crystalline coquimbite. Beautiful translucency on this specimen.

It has been mounted to an acrylic display base with mineral tack.

About Coquimbite

Coquimbite is a rare, hydrated iron sulfate mineral, often found in arid environments. It typically forms as a secondary mineral in oxidized iron sulfide deposits and can be purple, greenish, or greenish-yellow in color. Coquimbite's name comes from the province of Coquimbo, Chile, where it was originally discovered. It is known for its prismatic crystals, but can also be found in massive form.

Note: It's possible Coquimbite can effloresce (lose water and crumble) in dry air.

General Chemical Formula - AlFe3(SO4)6(H2O)12·6H2O
FOR SALE
$29
DETAILS
SPECIES
Coquimbite
LOCATION
Alcaparrosa Mine, Sierra Gorda, Antofagasta Province, Antofagasta, Chile
SIZE
1.55" wide
CATEGORY
ITEM
#326591