What should I pay attention to in the maintenance of malachite?

Malachite is an alteration product of copper-containing carbon salts, often used as a companion to copper ore. Its hardness is 3.5-4, it is opaque dark green. What should be paid attention to in the maintenance of malachite?

malachite

The varieties of malachite are common malachite, malachite gemstone, malachite opal, and blue malachite. Malachite gemstones are very rare malachite crystals. Malachite is used as ornamental stone and craft ornamental. It requires bright colors, pure and uniform, clear ribbons, and dense and non-porous blocks. The bigger the better. Malachite opal requires a positive background and a clear light band. Malachite can be carved into chicken heart pendants, egg-shaped ring faces, necklaces, and can also be made into stamp materials.

Malachite is characterized by a special peacock green and typical strips, which is not easily confused with other stones, but similar to beryl and chrysocolla. The difference is that the turquoise has a large hardness of 5-6, a small density of 2.6-2.9 g/cm3, and a small refractive index of 1.62. The hasronite has a small hardness of 2-4, a low density of 2-2.4 g/cm3, and a refractive index of 1.57.

Malachite is not durable and has low hardness. It can't keep good luster for a long time. It can only be used as beading and brooch. The Russians used malachite as a building interior material, and the large pillars of the St. Isaac's Cathedral in Leningrad were set with malachite. Malachite is also used to engrave various worship supplies and decorations, fireplaces and table tops.

What should I pay attention to in the maintenance of malachite? Most people don't know about malachite, so there are very few ways to introduce and maintain this aspect. Everything that Malachite needs to pay attention to during maintenance is because malachite is hard and brittle.

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