Garnet gemstones. Garnet is a relatively common group of minerals,which can be cut and polished for use in jewellery. Gemstones are solid crystalline substances (minerals),formed by natural processes. Garnets share the general formula of A3.B2(SiO4)3,where A represents metals such as calcium and B represents metals such as aluminium. Differences between different types of garnet are shown by their varying colours | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Lawry, Lawrence |
Bildgröße: | 4582 px × 3098 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |