1. The relative density of tiger bones is dense and hard. Unlike other animal bones with the same volume in the same place, the relative density (specific gravity) of tiger bones is almost twice that of cattle bones.

2. Look at the limb bones: the limb bones of the fake tiger bones are straight, the joints often suddenly swell like balls, the bone surface is angular, the hand bones are light, the limb bones of the real tiger bones are thick and slightly curved, the bone surface is obviously angular, and the hand bones are solid and heavy.

3. Look at the cross section of the limbs: the cross section of the long bone of the fake tiger bone is thick, the bone wall is thin, there is a big cavity in the bone, and a small amount of bone marrow adheres to the inner wall. After drying, these bone marrow forms a rare network structure. The cross section of real tiger bone is thin, and there are small cavities in the bone, and a lot of bone marrow is attached to the inner wall. After drying, these bone marrow forms more meshes, accounting for more than two-thirds of the cross section of limbs, which is brown.

Matters needing attention in maintenance of tiger bone bracelet

Usually, it can be put into a soft capsule box filled with moth-proofing pills. If there is dust on the surface, you can brush it off with a brush. But if you get oil stains or stubborn dirt, you need to brush it gently with warm soapy water. Never soak. Dry it in time after washing to prevent the utensils from tilting or tilting.

Secondly, tiger bones are composed of calcium phosphate and living things, so when the temperature varies greatly and the winter is too dry, it will lead to cracking, aging and embrittlement. Therefore, the storage environment of tiger bone beads should be kept as constant as possible.

The temperature of tiger bones should be 5~ 10 degrees Celsius. Thirdly, tiger bone beads are particularly sensitive to the change of humidity, because their white body not only contains a certain amount of water, but also has water absorption, which will absorb or release water with the change of environment, and the volume will also expand or contract, and the utensils will crack or deform due to excessive expansion and contraction.

The above contents refer to Baidu Encyclopedia-Tiger Bone.