chitin India krayker limpets macro malacology mantle mantle cavity Marine organism mollusc Mollusca Molluscs mollusk mother of pearl plates shell shells spicules spiral Spirally-coiled shells Alchemilla Alpine lady's mantle flowers green Lofoten Islands natural nature norway norwegian plants summer wild yellow Alchemilla alpina herb leaf leaves montane plant rock burn burning fire fireplace flame hearth home fire home sweet home mantlepiece warmth texture aquatic beach coast corals decorative marine ornamental sand sea shore undersea black orange sea shells shells on the rock coiled sharp spike spine golden shell spiral shell bead beads dew dew drop dewdrop drops isolated lady meadow morning dew on white pearl pearls rain water wet brown design Incredible India pattern white