At-A-Glance
Photos
Essential Information
Specimen ID
6714
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)
Subcollection
Carl ‘64 and Edna S64 Heimowitz
Donation
Additional Details
Associated Minerals
Elbaite
Muscovite
Quartz
Notes
This specimen is majority Tourmaline and contains Elbaite (Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)) and Muscovite (KAl2(AlSi3O10)(OH)2) on Quartz (SiO2).
Several large lustrous, transparent dark-green Elbaite Tourmalines embedded in vertical Quartz crystal cluser. Doubly terminated scepter tourmalines on Quartz, with Lepidolite and Muscovite. The back is a scatter of dozens of green crystals. Multiple books of Muscovite abound. Pederneira claim, São José da Safira, Doce Valley, Minas Gerais, Brazil. 15 x 9 cm.
Physical Description
Tourmaline and Elbaite (Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)) and Muscovite (KAl2(AlSi3O10)(OH)2) on Quartz (SiO2)
Geographic Origin
MinDat Locality URL
Additional Details
Historical Region Name
Pederneira claim, São José da Safira, Doce Valley, Minas Gerais
Original Attributed Locality
Brazil
Doce Valley