3919 - Tourmaline Group

At-A-Glance

Country of Origin

NY
United States

Photos

Essential Information

Specimen ID

3919

Mineral Name

Tourmaline Group

Chemical Formula

(Ca,Na,K,Pb)(Al,Fe2+,Fe3+,Li,Mg2+,Mn2+,Ti)3(BO3)3(O,OH)3(F,O,OH)
Specimen Number
133a

Black crystal fragments in friable matrix

Geographic Origin

Locality Nickname

Kingsbridge, New York

Locality Lat/Long

40.8833912, -73.9051185
Original Attributed Locality
New York City
Kingsbridge