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| Mineral name: | Aquamarine |
| Mineral family: | Beryl |
| Association: | Albite |
| Formula: | Be3Al2(Si6O18) |
| Crystal: | Hexagonal |
| Hardness: | 7.5-8 |
| Spec. Gr.: | 2.66-2.83 |
| Streak: | White |
| Cleavage: | Imperfect |
| Locality: | Dusso, Gilgit Division, northern Pakistan, north of the Shigar River |
| Mine name: | Dusso Mine, C.S. Middlemiss |
| Mineral use(s): | Gemstone |
| Specimen size: | 6.4 cm |
| Rarity of specimen: | Rare, fewer than 500 known worldwide. |
| About the mine: | Located in 1912. Isolated gem pockets in granite pegmatite are still being discovered. |
| From the same mine: | Albite, Muscovite, Morganite, Goshenite |
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