Ca
Al
Fe
O
H
Si
Ball and Stick
Stick
Spacefill
Polyhedral
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Epidote
Epidote is a member of the sorosilicate group. As such, it’s silicate backbone is made up of duotetrahedral silicate units; that is, two silicate tetrahedra are polymerized together by corner bonding. Epidote is monoclinic with a prismatic or tabular habit.
Highlighting Features
Tetrahedrally-coordinated silicon (Si) atoms A duotetrahedral silica polymer Tetrahedrally-coordinated aluminum (Al) atoms Oxygen (O) atoms Single unit cell All atomsDistribution
Characteristically found in alpine regions.
Gabe, E. J., J.C. Portheine, S.H. Whitlow. 1973. A reinvestigation of the epidote structure: Confirmation of the iron location sample HEP. American Mineralogist. 58:218-223.