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2. () Ư
No.
ѱ
ѱ۸
Ī
132
Coral
ڷ
ȣ(ߦ)
, ȫ, , û (źĮ) , Ȳݻ (conchiolin)
浵
(Trigonal)
Calcium carbonate or conchiolin
3
2.68
1.49-1.66
Ұ
帲->
Ư
ȣ ڷ (coral polyp)̶ ϴ ؾ絿 ܷ . ̷ ڶ鼭 ϴ ü ȣ(coral reef) ȯ(atoll) Ѵ. ǥ ݿ ؼ - ðų Ǵ - Ư ¸ Ѵ. κ ȣ - , ȫ, û - źĶþ(calcium carbonate) ; Ȳݺ ȣ ĭī̾(conchiolin)̶ ϴ . ȣ θ õ ⵿ ǾԴ. ó Ź ̴ ȣ , , 鿡 ΰϸ ϰ ٷ ִ. ȣ ڱ(porcelain), , , ÷ƽ Ǵ ȥչ Ǵ 쵵 ִ.
ȣ ߰ߵȴ. Ϻ ȣ , ȫ Ǵ ̴. ȫ ȣ ؿ Africa ؾ, ȫؿ Malaysia Ϻ ȿ ߰ߵȴ. Ȳݺ ȣ ε, ȣֿ ȿ ߰ߵȴ.
ȣ ̵ ȣ õǾ , θ ̵鿡 ȣ ϴ 찡 ִ.
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