| 1 | Product Info:Quartz, Tiger Eye, Quartz Aventurine , Amethyst, Quartz Smoky, Agate. | |
| 2 | Crystal Stone Amethyst, citrine, crystal dragon, topaz, white crystal, such as each other. | |
| 3 | The impressive composition is enhanced with generously sized coloured stones - amethyst, tourmaline, citrine, peridot and topaz. | |
| 4 | Natural gemstones are: olivine, garnet, Hailan Bao, white topaz, blue topaz, amethyst, topaz, citrine, ruby, sapphire and so on. | |
| 5 | The thermoluminescent(TL) characteristics of the natural colourless rock crystal, tea-quartz, amethyst samples and their synthetic samples are tested by using the thermoluminescence metering device. |