#vintageearthscience

[cringecasket]

Ruby in greem zoisite (northern Tanzania). 200 x 170 mm. Cross-section of three crystals. Diameter of largest crystal is up to 40 mm.

Sapphire pebble in conglomerate (Ratnapura, Sri Lanka). 110 x 80 mm.

Cross-section of zoned corundum, photographed in transmitted light (Tasmania). Diameter 25 mm.

Asteriated sapphires (Tasmania). Diameter of largest specimen 25 mm.