Mineral: | Tourmaline, Variety: Elbaite - Schorl / Quartz / Feldspar, Variety: Albite
| Chemical Formula: | Na(Li1,5AL1,5)Al6(BO3)3[Si6O18](OH)3(OH) / SiO2 - NaFe3+2Al6(BO3)3[Si6O18< | Size: | | Weight: | | Transparence: | | Quantity: | | Origin: | Chamachhu, Stak Nala, Haramosh Mts., Skardu District, Baltistan, Northern Areas, Pakistan | Black-green tourmaline crystal in quartz, with intact termination and prism faces. The upper part of the crystal shows a dark green coloration. The quartz itself is fully crystallized and some albite crystal can be seen at the base of the tourmaline.
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