Yantai: Jimo jade is a precious and rare natural resource, which is only produced in the northern mountainous area of Fuping County, Shaanxi Province. Its color is heavy and greasy, its texture is meticulous, it is black as ink, bright and lovely, and it is very famous. Its hardness is about Mohs4o, and it is known as a precious material for processing inkstones and knives. The ancients called it "gem", which can be divided into diamonds, precious stones and colored stones. Black jade refers to a valuable variety of Hetian jade in Xinjiang, which has the excellent quality of Hetian jade and is compact and moist. Among them, pure black jade is as black as ink, thick and greasy in color, delicate in texture, smooth and elegant.

The function of inkstone:

1. Dredge meridians

Mo Yu Can penetrates the human body by massaging subcutaneous cells and acupoints, thus improving the immune function of the human body and balancing the mechanism of the microcirculation system, thus achieving the effects of dredging meridians, unblocking qi and blood, and calming viscera.

2. Improve eyesight and moisten lungs

Wearing jet jewelry often can promote blood circulation. It can regulate yin and yang, and treat palpitation, heart heat, conjunctival congestion, tooth swelling, cough, pulmonary pain and hyperthyroidism. Has the effects of improving eyesight, moistening lung, relaxing bowels and lowering blood pressure. It has certain preventive and therapeutic effects on breast cancer. Long-term wearing can prevent and relieve pain, make people full of energy and make all parts of the body more coordinated. With jet and emerald in his mouth. With the help of the nutrition and lysozyme function contained in saliva, it can produce body fluid to quench thirst, nourish the heart and lungs in addition to stomach heat, and has a miraculous effect on oral ulcer.

3. Anti-inflammatory and analgesic

The elements B and S in jet and their compounds have bactericidal and antipruritic effects. This is the natural function given by nature to natural objects.

Lingbi stone:

Metamorphic rock, which belongs to jade, is aphanitic limestone, composed of fine calcite with uniform particle size, and is dark or patterned because it contains metal minerals or organic matter. Produced in Qingyun Mountain, Lingbi County, Anhui Province. Lingbi stone was formed more than 800 million years ago.

In the Paleosinian (about 800-440 million years ago), Lingbi County was submerged by Lvliang tectonic movement, making Lingbi a shallow sea. During this period, a large number of protoalgae plants proliferated and grew, forming reefs, and developed into various stone ore bodies under the action of marine sedimentation. The Sinian-Ordovician carbonate rocks were deposited on the Sinian structure.

In ancient times (about 400-230 million years ago), after Caledonian tectonic movement, the crust rose to land. After the Variscan tectonic movement, it sank into a shallow lagoon. It was not until Mesozoic (about 200 million years ago) that this area rose to land after Indosinian tectonic movement, and the sea water disappeared from then on. At the same time, during the Indosinian tectonic movement, folds and faults appeared in China stratum. From late Jurassic to Cretaceous, Yanshan tectonic movement occurred again, accompanied by volcanic eruption, and magmatic geology appeared.

In the Cenozoic (654.38+200,000 years ago), the Tertiary strata were deposited in the limestone dissolution area. 654.38+0000 years ago, the Quaternary impact plain stratum was formed. Most of the above strata are concealed under the Quaternary, and a few are sporadically exposed in the denuded residual hills of low mountains and hills. After a long and complicated geographical change, Lingbi stone with special geology and modeling has been formed.