Search Archived Mineral Specimens
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Miass, Southern Urals, Russia
- Formula
- Al2O3
- Size
- SmCabinet 5.5x6x3.5cm
Rich blue large Corundum crystal showing twinning patterns and two crystal faces.
- Availability
- Sold
- Locality
- Bajouri, Hassanabad, Hunza, Northern Areas, Pakistan
- Formula
- Al2O3
- Size
- SmCabinet 5.5x4x3cm
Bright red well formed gem crystals of Ruby corundum in marblized matrix. The largest crystal is 9mm.
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Sterling Hill mine, Ogdensburg, Sussex Co., New Jersey, United States
- Formula
- Al2O3
- Size
- Miniature 5x3x3.5cm
A good representative specimen of altered country rock with red ruby crystals to 8mm, greenish Margarite and deep red Rutile.
- Availability
- Sold
- Locality
- Zazafotsy quarry, Ihosy dist., Horombe, Fianarantsoa, Madagascar
- Formula
- Al2O3
- Size
- SmCabinet 8x6x2.5cm
A long 3.5cm purple-red crystal in matrix. Note the white halo around the sapphire. This is a depletion zone where the corundum robbed the surrounding rock of necessary elements.
