1, naturally
Nature is the basic feature of crystal ornamental stones. Usually, the crystal minerals with overall shape have high ornamental value without decoration and carving, but the inclusion crystal ornamental stones often need to be polished properly, which is more convenient for viewing the inclusions in the crystal. But naturalness determines its value.
2. Strangeness
The shape, texture and internal characteristics of crystal ornamental stones are often very strange. Natural scenery is infinite, and the miniature can be found in inclusion crystals.
Step 3 be thin
Crystal is a non-renewable resource. With the deepening of development, the stock of crystals is getting less and less. For the sake of sustainable development, Donghai county government has long formulated policies to protect local resources and encourage the development of overseas crystal resources. However, overseas resources are getting less and less, and many countries? Both of them have raised the threshold of mining and exporting to rock crystals, and the prices of foreign crystals entering the East China Sea market have skyrocketed year after year, among which the prices of ornamental crystals have risen faster than ordinary crystals.
4. Persistence
The chemical composition of the crystal is mainly silicon dioxide, and the chemical stability of the crystal is quite good; The hardness of the crystal is very large, and its Mohs hardness is 7. These decide that the crystal will not rot and deteriorate, and it is durable and easy to store, which is very suitable for collection. ? In fact, crystal is good for our human body. Wearing different crystals around can protect people's health, drive away unclean things and enhance people's immunity. In a word, crystal is such a magical sculpture of nature.