Upload
luther-molina
View
23
Download
0
Embed Size (px)
Citation preview
Corals
a hard stony substance secreted by certain marine coelenterates as an external skeleton,
typically forming large reefs in warm seas.
Calcareous
containing calcium carbonate
Coelenterates
an aquatic invertebrate animal of a phylum that includes jellyfishes, corals, and sea anemones. They are distinguished by having a tube- or cup-shaped body and a single opening ringed with tentacles.
6 steps Involved in the Preparation of Corals
• SoakingAccording to Google Dictionary, soaking is an act of wetting something thoroughly. • Cleaning. According to Google Dictionary,
cleaning is to make (something or someone) free of dirt, marks, or mess, especially by washing, wiping, or brushing.
• Bleaching . Is to whiten by exposure to sunlight or by a chemical process. We can use hydrogen peroxide, chlorine and sodium perborate to make the corals become white.
• Drying . It is defined as the act of removing the moisture by means of Natural and artificial process.
• Sorting and grading. This is the process of classifying the coral according to its size and quality.
• Finishing , coloring and designing. Application of art to make a beautiful craft out of corals.
Important Uses of Corals
• serves as shelter of fishes
Ornamentals and Jewelleries
Decoration
Evaluation