Aug 12, 2017 - Holtite, Al6(Al,Ta)(BO3)[(SiO4,SbO4,AsO4)]3(O,OH)3, Vasin-Myl'k Mountain, Kola, Russian Federation. Light grey-violet holtite crystals in white albite matrix
![Holtite, Al6(Al,Ta)(BO3)[(SiO4,SbO4,AsO4)]3(O,OH)3, Vasin-Myl'k Mountain, Kola, Russian Federation. Light grey-violet holtite crystals in white albite matrix Russian Federation, Matrix, Light Grey, Minerals, Rocks, Mountain, Crystals, White, Garnet](https://i.pinimg.com/originals/9d/69/8a/9d698a3062581c0433d0435a15caf53f.jpg)
