Coral is usually white with a little blue and black. Gem-grade corals are red, pink and orange. Red is formed because coral absorbs about 1% iron oxide in seawater during its growth, and black is formed because it contains organic matter. It has glass luster to waxy luster, opaque to translucent, and the refractive index is 1.48- 1.66. The hardness is 3.5-4, the density is 2.6-2.7g/cm3, and the density of black coral is relatively low, which is 1.34g/cm3. Sexually fragile. Strong foaming in hydrochloric acid. No fluorescence.

How many colors do corals have?

Generally, healthy corals are colored, and death or water pollution will cause coral bleaching (personally, the so-called water pollution may also lead to coral death, after all, corals are very picky creatures).

The corals I have seen are red, green, blue, yellow and purple, and some colors are hard to describe. In short, they are magnificent.

What color is coral orange?

The color of coral orange is as shown below, close to orange. It is named because it is similar to coral in color.

What color is coral orange?

It's the color in the picture below, a little pink orange, not that bright orange.

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What color is coral blue?

Lake blue is deeper than sky blue.

What color is coral red? What's the difference between orange and orange?

Coral red is very similar to orange red, both yellow and red, but a little pink, bluer than pink, and pink is redder than red. If there is no clear color boundary, both names can be used.

Why do corals have many colors?

Generally, healthy corals are colored, and death or water pollution will cause coral bleaching (personally, the so-called water pollution may also lead to coral death, after all, corals are very picky creatures). Seen corals are red, green, blue, yellow and purple, and some colors are indescribable. In short, they are magnificent.

The color of coral

Coral has many colors, among which the famous ones are red coral, white coral (also called emerald coral) and pink coral (also called "baby face").

If you are talking about the color of red coral, it is big red, the brightest and most correct color like the national flag.

If you're talking about the color of pink coral, it's light pink with cream tones.

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