pufel or paua
Pāua.
Paua
Paua shell or oyster shell (mother of pear)
Most jewelry is made of silver, gold and platinum. Recently other materials like tungsten, palladium, titanium and other metals are being used to make beautiful jewelry pieces.
The value of a cowrie shell can vary widely depending on factors such as size, condition, rarity, and historical significance. In general, cowrie shells are no longer used as currency but are often traded as decorative items, jewelry, or collectibles. Their value can range from a few cents to several dollars per shell.
The shell is principally a symbol of baptism since a shell is often used to pour water on the head.
A non-silver version of a conch may be made of materials such as shell, resin, or plastic. These materials are often used as alternatives to silver for conch replicas or costume jewelry.
There are many reasons.Habitat destruction is one.Predation of eggs is another.Also mankind has used turtles for eating & often used turtle shell to decorate furniture & different kinds of boxes,snuff boxes being a common use.The Turtle shell was highly prized for it beautiful looks & ornamentation.
Marble is a beautiful rock commonly used in constructing buildings.
Gold.
Amber
Rubies tend to be valuable because they're rarer gems and part of the four precious stones. They're often used to make beautiful jewelry, and genuine ruby can be difficult to find.