4616 - Piemontite

At-A-Glance

Country of Origin

Saint-Marcel, Aosta Valley
Italy

Contributors

Archibald MacMartin

Photos

Essential Information

Specimen ID

4616

Mineral Name

Piemontite

Chemical Formula

Ca2(Al,Mn,Fe)3(SiO4)3(OH)=Ca2(Mn,Fe)Al2(SiO4)(Si2O7)O(OH)

Subcollection

Archibald M. MacMartin
Specimen Number
003

Aggregate of dark red prismatic crystals, with white albite

Geographic Origin

Locality Nickname

Saint-Marcel, Italy

Locality Lat/Long

45.7298872, 7.4487264
Original Attributed Locality
Piedmont
St. Marcel
Geographic Features
Valle d'Aosta