Amber was born between 40 million and 60 million years ago. It belongs to the geology of Eocene. It is a fossil of precious pine resin that undergoes qualitative transformation after high pressure and high heat extrusion through the earth's rock formation. What is the hardness of amber? Amber is mostly irregular in granular, lumpy, stalactite and granular. Sometimes there are fossils of plants or insects inside. The colors are yellow, brownish yellow and reddish yellow. The streak is white or light yellow. With a rosin luster. Transparent to opaque. The shape of the fracture shell is extremely remarkable. Hardness 2 to 2.5. The specific gravity is 1.05 to 1.09. Extremely brittle. Frictional charging. The hardness of an object depends on the composition of the object. The hardness of amber is very low because its main component is resin. Resins are liquids secreted by some plants to prevent the growth of fungi and insects. The initial resin is in a liquid state, and the resin slowly solidifies into a solid due to prolonged exposure to the air, and its hardness is extremely low. Amber is a resin fossil that has been formed over thousands of years of natural variation. The long years have increased the hardness of the resin, but compared to other jade-like gemstones, the amber hardness is still very low. For example, diamonds have a hardness of 10 and agate has a hardness of 7, which is much higher than amber. In general, the hardness of amber is between 2-3, its hardness is less than one-third of the diamond, less than half of the agate. It can be said that the amber is the lowest hardness of the organic gemstone, even the hardness of the pearl is higher than the amber, so you can see the low hardness of amber.
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