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Coral Protection - Aplysina Fistularis $1 Silver Coin - Tuvalu 2011

8435408907200

Yellow tube sponge (Aplysina fistularis) $1.

Second coin in "Coral Protection" series. Silver proof half ounce coin partly coloured.

Included, box, outer illustrated box, and numbered COA. Mintage: just 1,000 pcs. worldwide.

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$65.08

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Data sheet

Country :Tuvalu
Year :2011
Face Value :1 Dollar
Metal :Silver .925
Weight :1/2 oz
Size :35.00 mm
Quality :Proof
Mintage :Only 1,000 pcs. worldwide
Series :Coral Protection
Certificate of Authenticity :Yes
Original ETUI box/case :Yes

More info

Corals are marine organisms in class Anthozoa of phylum Cnidaria typically living in compact colonies of many identical individual "polyps". The group includes the important reef builders that inhabit tropical oceans, which secrete calcium carbonate to form a hard skeleton.

Yellow tube sponges get their name from their hollow, chimney-like body form. They pump huge quantities of water through their bodies, filtering out the tiny particles on which they feed. At shallow depths yellow tube sponges have a shape which resembles a cactus. In deeper waters, the sponges develop long, straight tubes. Their vivid yellow colour is probably due to special fluorescent pigments in the sponge tissue. 

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Coral Protection - Aplysina Fistularis $1 Silver Coin - Tuvalu 2011

Coral Protection - Aplysina Fistularis $1 Silver Coin - Tuvalu 2011

Yellow tube sponge (Aplysina fistularis) $1.

Second coin in "Coral Protection" series. Silver proof half ounce coin partly coloured.

Included, box, outer illustrated box, and numbered COA. Mintage: just 1,000 pcs. worldwide.

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