How to distinguish between "old species", "medium-old species" and "young species" of jadeite

A dreamer who focuses on spreading Chinese jade culture

The quality of jade is only relative.

There is no absolute quantitative standard.

Just separate the old seeds from the young seeds.

The specific quality of a species can be reflected by its figurative name.

Species are usually divided into three categories: upper, middle, and lower.

It is divided into old species,

There are three types: middle-aged and old varieties and young varieties.

Each category can be divided into several types.

1. Classification characteristics of old jadeite

The old types of jadeite mainly include:

Han type, ice type, glass type,

Laolong species, egg white species, gum species, etc.

1. Hanzhong Jade

Types of Jadeite:

Often used to describe the best quality of green in jadeite.

There are many kinds of green jade,

The "color and quality" usually refers to very beautiful green jadeite.

The color of Han jade has a moist feel.

Color and earth contain and embrace each other.

Blend into one,

Green melts into the water.

Color and ground are intertwined and inseparable.

The color is clear and beautiful.

Green and watery,

No impurities, no cotton.

Very pure!

2. Ice Jade

Ice jadeite:

Jadeite that is as hard as ice is called "ice jade".

The characteristic of ice is that the crystal particles of minerals are very small.

The texture is very fine and hard.

Dense structure, high density,

The water head is very sufficient.

The water depth can reach about 3 minutes.

The sense of transparency is very strong.

The polished surface is smooth, bright and has no roughness.

Ice type will contain some tiny "cotton"

Like ice chips in an ice cube.

Ice jade is a typical old jade.

therefore,

When experts describe old varieties, they usually use the word "ice".

For example,

"Icy" and "full of icy" mean that the jade is old.

"Lack of icy quality" and "not enough ice flavor" mean that the quality of the jade is slightly worse.

3. Glass Jade

Glass jadeite:

It is a more transparent type than ice type.

Its characteristic is that it has a lot of water head.

The water is deep.

Almost no impurities.

It feels more clear and transparent.

Since the mineral particles are very small,

The outline of the crystal is barely discernible to the naked eye.

Therefore, it generally does not contain obvious spotted "cotton".

Cotton (i.e. white nails) the size of nail holes are often found in raw stones.

Because glass jade is very delicate and dense,

Its polished surface is as bright as a mirror.

Like glass.

Therefore, the "glass-like" phenomenon is often seen on the finished products.

4. Egg white jadeite

Egg white jadeite:

The characteristic of egg white is that it has a lot of water.

The jade meat is very delicate.

The mineral crystal particles are almost invisible to the naked eye.

The cotton of jade meat species is relatively small.

Even if there is, it is very small.

therefore,

The egg white type does not have obvious ice chips like the ice type.

It's like egg white.

Relatively pure and warm.

Egg white seed is not as good as "glass seed"

So dense, hard and rigid,

It's a little softer.

But it is extremely tough.

5. Plastic Jade

Plastic jadeite:

Plastic species are also called rubber species.

It refers to the very good seed quality, which is like resin glue.

Transparent and oily,

The water head is very sufficient.

The whole body is relatively uniform and pure.

The plastic type has a greasy sheen.

There is a thick feeling.

There is no slag and no "white nails",

Although there is no fluorescence,

But the performance is quite beautiful.

2. Classification characteristics of middle-aged and old jadeite

The middle-old species is a medium-level species between the old species and the young species.

The glutinous variety is the most representative.

There are mainly glutinous, ice glutinous,

Fine glutinous seeds, glutinous seeds,

Agate, rock sugar,

Taro seeds, etc.

1. Glutinous jadeite

Glutinous jadeite:

The crystal particles of its minerals are relatively coarse.

The fineness and density are also slightly lacking.

Although the water head is good,

But it does not have the clear and transparent feeling of the old variety.

If the meat is hard,

The water head is better and closer to "ice type",

It can be called "ice glutinous variety" ;

The meat is more delicate and glutinous.

It can be called "fine glutinous variety" .

If the meat is not only fine and glutinous,

And the density is higher,

The mineral particles in the jade can be "melted apart".

More water head,

This can be called "glutinous variety" .

2. Rock Sugar Jade

Rock sugar jadeite:

Like rock sugar,

Its characteristics are that the meat is coarse,

But the structure is quite dense and hard.

The water head is good but there is a noticeable turbidity.

Not bright enough.

3. Taro Jade

Taro Jade:

The quality of jade is like a cooked taro.

The meat is delicate.

No crystal particles can be seen.

But the water head is obviously insufficient.

Poor sense of transparency.

3. Classification characteristics of tender jadeite

The annual output of tender jade is quite large.

They also account for the majority of the trading market.

But its overall value is relatively low.

There are many types of it.

There are mainly bean species, horse tooth species,

Coarse sand, fine sand, etc.

Bean species are the most common.

The largest number,

Hence the saying “Nine out of ten kinds of beans”.

1. Bean-type jadeite

Bean-type jadeite:

The so-called "bean seeds"

It is named because the jadeite mineral grains of jade are as large as beans.

The characteristics of bean-type jade are loose structure,

It has a coarse-grained structure.

Poor density,

The intercrystalline spaces between mineral particles are relatively large.

The crystal outlines are clearly visible.

Due to the loose structure,

Bean-type jade has poor ability to resist mechanical forces.

Therefore, jade is relatively soft.

Low wear resistance,

The density is relatively small.

Lightweight feel.

It’s not as heavy as old jadeite.

The polished surface is relatively rough.

There are pitting spots.

Poor reflective performance,

Therefore, the brightness of the jade is poor.

It looks and feels very "wooden".

Not glamorous enough.

fcgc33

fcpf18