Nacreous aragonite ("mother-of-pearl") 1 : 無料・フリー素材/写真
Nacreous aragonite ("mother-of-pearl") 1 / James St. John
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
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| 説明 | "Mother-of-pearl" refers to mollusc shell material having pearlescence to rainbow iridescence. Such shell material is composed of nacreous aragonite (CaCO3, calcium carbonate), which is a polymorph of calcite.These whitish mother-of-pearl cabochons are from modern freshwater bivalves ("mussels").------------------------------------Info. at:en.wikipedia.org/wiki/Nacre |
| 撮影日 | 2025-06-02 17:31:16 |
| 撮影者 | James St. John |
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