NN | Card | Specie | Formula | Space Group |
---|---|---|---|---|
1. | 1564 | [1], t-tourmaline, DN | Na0.25[Li0.22Fe1.6Al0.89(Mg,Mn)0.29]Al6Si6O18[BO3]3(OH)4 | R 3m |
2. | 1565 | [2], t-tourmaline, syn | (Fe,Al)3Al6[Si6O18][BO3]3(OH)4 | R 3m |
3. | 1566 | [3], t-tourmaline, DN | Na0.41[Fe2Al]Al6Si6O18[BO3]3(OH)4 | R 3m |