 Not so small, red corundum crystal, that nested on piece of matrix rock, from Khit Island, Northern Karelia, Karelia Republic, Northern Region, Russia Spc. Num. C-007 Size 57 x 57 x 43 mm |
 Corundum crystal in a matrix rock, Zazafotsy Quarry, Ambahatraso, Amboarohy, Ihosy, Ihosy Department, Horombe region, Fianarantsoa Province, Madagascar Spc. Num. C-006 Size 70 x 46 x 43 mm |
 Large, red corundum crystals in matrix rock, from Raiz, Tyumenskaya Oblast', Polar Urals, Western-Siberian Region, Russia (ex. Wolfgang E. Henkel collection) Spc. Num. C-010 Size 127 х 110 х 65 mm |
 Large specimen of pink colored, corundum crystals cluster, from Minh Tien Mine, Luc Yen, Yenbai (Yen Bai) Province, Vietnam Spc. Num. C-009 Size 55 x 39 x 29 mm |
 Red Corundum (var. Ruby) , Hunza Valley, Gilgit District, Northern Areas, Pakistan Spc. Num. C-004 Size 105 x 103 x 60 mm |
 XL, gemmy transparent double terminated glassy prismatic corundum crystal, from Ratnapura, Ratnapura District, Sabaragamuwa Province, Sri Lanka. Ex. Lloyd Tate collection Spc. Num. C-001 Size 62 x 20 x 11 mm |
 Perfect quality and double terminated sapphire specimen, from Ratnapura, Ratnapura District, Sabaragamuwa Province, Sri Lanka. Spc. Num. C-005 Size 35 х 13 х 11 mm |
 Red Corundum crystal on matrix rock, from Winza bei Mpapwa, Tanzania Spc. Num. C-008 Size 38 x 34 x 16 mm
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