[The basic concept of jewelry and jade]
1. A generalized gem refers to all materials that have been honed or engraved to become jewelry or crafts. It includes natural and artificial gemstones.
2. Narrow gems refer to mineral single crystals produced by nature, which are beautiful, durable, rare and can be honed and carved into jewelry or crafts.
3. Jade refers to mineral aggregates produced by nature that are aesthetically pleasing, durable, rare and technologically valuable.
[The following are the words from the words Zhu, Bao, Jade, and Stone.]
One, beads
In jewelry and jade, it refers to pearls. At present, the pearls on the market are basically cultured pearls. According to the different waters produced, they can be divided into freshwater pearls and seawater pearls.
Second, the gem
It refers to natural mineral crystals that can be used for jewelry and other purposes. It can be divided into high-grade gemstones and medium-low-grade gemstones by value.
The world's five precious gems are: diamonds, rubies, sapphires, emeralds and gold emerald cat eyes.
Other common middle and low grade stones include: topaz, crystal, tanzanite, tourmaline, garnet and more.
Third, jade
Jade is a multi-mineral collection. In China, stones that meet the three characteristics of beauty, durability and scarcity can be called jade.
There are many kinds of jade produced or used in China, and the value of Hetian jade and jade is the highest.
Fourth, stone
The so-called "stone" often mentioned in jewelry generally refers to colored stones for carving, such as: Shoushan Stone, Qingtian Stone, Bahrain Stone, and so on.
Stone and jade generally have lower hardness, and most Mohs hardness is between 2-4 degrees.
Five, organic gemstones
It refers to organic minerals or organic gemstones formed by the action of ancient creatures and modern organisms that meet the requirements of gemstones. Including: pearls, amber, ivory, coral, tortoise shells, etc.
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