| Added by |
 Alain Martineau
|
| General Description : | Sapphire is a gemstone variety of the mineral corundum, an aluminium oxide (α-Al2O3). Trace amounts of other elements such as iron, titanium, or chromium can give corundum blue, yellow, pink, purple, orange, or greenish color. Chromium impurities in corundum yield a red tint, and the resultant gemstone is called a ruby |
| Face value | 10 Cent |
| Catalog code (Michel) | AU 561 |
| Catalog code (Scott) | AU 562 |
| Catalog code | Yvert et Tellier AU 546 Stanley Gibbons AU 552a Seven Seas Stamps AU 590 |
| Series | Australian Marine Life & Gemstones |
| Place in series | 9 |
| Stamp colour | Multicoloured |
| Watermark | None |
| Stamp use | Definitive stamp |
| Print run | 578.904.000 |
| Issue date | 16/10/1973 |
| Designer | John Mason |
| Print technique | photogravure |
| Printed by | Note Printing Branch, Reserve Bank of Australia |
| Perforation | COMB 15:14 |
| Height | 24.00 mm |
| Width | 20.00 mm |
| Catalog prices | Used stamp $0.20 Unused stamp $0.30 |
