Ankerite
Image: <a href="//commons.wikimedia.org/wiki/User:Archaeodontosaurus" title="User:Archaeodontosaurus">Didier Descouens</a> (CC BY-SA 3.0)
Mineral NameAnkerite
Chemical FormulaCa(Fe,Mg)(CO3)2
Mohs Hardness3.5
Crystal Systemtrigonal
Lustervitreous
Streak Colorwhite
Cleavageperfect rhombohedral
Fractureconchoidal to uneven
Specific Gravity2.95
Colorsbrownish-orange, yellowish-brown
Transparencytranslucent
Type LocalityHuaron Mines, Cerro de Pasco, Pasco Department, Peru
Mineral GroupCarbonates
Usescollector, gangue mineral
Associated Mineralsquartz
Raritycommon
Description
A specimen featuring brownish-orange, granular ankerite crystals forming a crust on translucent, prismatic quartz crystals.
Geological Context
Ankerite is a common gangue mineral found in hydrothermal veins, often associated with metallic ore deposits, and can also occur in metamorphic and sedimentary rocks.
