nacreous
51Fog — For other uses, see Fog (disambiguation). Part of the Nature series on Weather   Calendar seasons Spring  …
52Nautilus — For other uses, see Nautilus (disambiguation). Nautilus Temporal range: Triassic–Present[1] …
53Mussel — Not to be confused with muscle. Mussel Blue mussels Mytilus edulis in the intertidal zone in Cornwall, England Scientific classification Kingdom …
54Nimbostratus cloud — Nimbostratus with fractus Abbreviation Ns Symbol …
55Cirrocumulus cloud — Cirrocumulus clouds on a summer afternoon Abbreviation CC[1] …
56Cirrostratus cloud — Cirrostratus fibratus Abbreviation Cs Genus Cirrus curl of hair and stratus layered Alti …
57Porcelain — Fine China redirects here. For the band, see Fine China (band). This article is about the ceramic material. For other uses, see Porcelain (disambiguation). Chinese moon flask, 1723 35, Qing Dynasty …
58Aragonite — is a carbonate mineral, one of the two common, naturally occurring polymorphs of calcium carbonate, CaCO3. The other polymorph is the mineral calcite. Aragonite s crystal lattice differs from that of calcite, resulting in a different crystal… …
59Cowry — Not to be confused with kauri. A print from 1845 shows cowry shells being used as money by an Arab trader. Cowry, also sometimes spelled cowrie, plural cowries, is the common name for a group of small to large sea snails, marine gastropod… …
60Mammatus cloud — Mammatus clouds in San Antonio, Texas, 2009 Appearance The cloud appears to have smooth, round puffs hanging from its underside …
