Sea Shell

How can I tell how old a sea shell is?

Found a GIANT shell on vaca. How can I tell how old it is or where can i go for someone to tell me how old it is. Thanks in advance.

The average mollusk expands (enlarging it as it grows) its shell every 3 to six months. so if , say a clam is a seedling it will take about one year to grow to about one and a half inches in length. then about half inch every 6 months. If it is a snail , depending on what type , it too grows an average of one to two inches a year. I have a queen conch that measures 9 inches so this particular conch or snail is about 9 to 10 years old.
Some mollusk grow at a slower pace, like scallops it is said that they take 7 years to reach maturity and be able to reproduce. These sizes are about 3 to 4 inches wide or the span of 4 fingers.

Find Sea Shell On eBay Below:

2 Pair of Roseville Capri 1151 Green Sea Shell Ceramic Candlestick Holders
2 Pair of Roseville Capri 1151 Green Sea Shell Ceramic Candlestick Holders
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Pair Lot 2 Lord Nelson Pottery Seashell Cream White Bowls Dishes 4 77 England
Pair Lot 2 Lord Nelson Pottery Seashell Cream White Bowls Dishes 4 77 England
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Van Briggle Burgandy Matte Sea Shell planter
Van Briggle Burgandy Matte Sea Shell planter
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KAISER Fossil Seashell White Porcelain Bisque Bowl 6 diameter 3 1 2 tall
KAISER Fossil Seashell White Porcelain Bisque Bowl 6 diameter 3 1 2 tall
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Mikasa Shoreline 3 Salad Plates Dinnerware CP017 Seashells Border Never Used
Mikasa Shoreline 3 Salad Plates Dinnerware CP017 Seashells Border Never Used
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Westmoreland Covered Dish Seashell Finial Dolphin Feet Milk Glass Lid Blue Base
Westmoreland Covered Dish Seashell Finial Dolphin Feet Milk Glass Lid Blue Base
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Classic Cream Wall Pocket Seashell Planter Scroll Sconce Cottage Chic Decor
Classic Cream Wall Pocket Seashell Planter Scroll Sconce Cottage Chic Decor
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MINT KAISER FOSSIL SEASHELLS WHITE BISQUE PORCELAIN 6 BOWL PLANTER RARE
MINT KAISER FOSSIL SEASHELLS WHITE BISQUE PORCELAIN 6 BOWL PLANTER RARE
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222 FIFTH OCEANA BLUE DINNER PLATE ROUND 10 1 2IN NEW SEASHELL TURQUOISE BLUE
222 FIFTH OCEANA BLUE DINNER PLATE ROUND 10 1 2IN NEW SEASHELL TURQUOISE BLUE
$14.50
2 Baum Brothers Style Eyes Blue Seashell Collection Small Scallop Dishes NEW
2 Baum Brothers Style Eyes Blue Seashell Collection Small Scallop Dishes NEW
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Vintage Belleek Seashell Pitcher Creamer Iridescent Lustre 1st Green Mark 4
Vintage Belleek Seashell Pitcher Creamer Iridescent Lustre 1st Green Mark 4
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Vintage Appolia Sea Shell Shaped Serving Baking Dish Made In France 0309320
Vintage Appolia Sea Shell Shaped Serving Baking Dish Made In France 0309320
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Belleek New Shell Yellow Pattern Handled Cake Plate Seashell Accents 10 1 2
Belleek New Shell Yellow Pattern Handled Cake Plate Seashell Accents 10 1 2
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Belleek New Shell Yellow Pattern Salad Plate with Seashell Accents 8 Diameter
Belleek New Shell Yellow Pattern Salad Plate with Seashell Accents 8 Diameter
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Sonoma Seaside Tan Mug 16 OZ Cream  Tan Embossed Sea Shells Life Style
Sonoma Seaside Tan Mug 16 OZ Cream Tan Embossed Sea Shells Life Style
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Painted porcelain inkstand 2 wells France Dresden flowers sea shells heavy gold
Painted porcelain inkstand 2 wells France Dresden flowers sea shells heavy gold
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Lenox Sea Shell Shaped Dish Gold Trim Candy Trinket Dish Classic Lenox Serv
Lenox Sea Shell Shaped Dish Gold Trim Candy Trinket Dish Classic Lenox Serv
$6.50
Fabulous Large Vintage Seashell Vase Handmade Folk Art Primitive Antique Florida
Fabulous Large Vintage Seashell Vase Handmade Folk Art Primitive Antique Florida
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LOVELY WEDGWOOD TEAL JASPERWARE 8 1 4 SQUARE PLATE WITH SCALLOPED RIM SEASHELLS
LOVELY WEDGWOOD TEAL JASPERWARE 8 1 4 SQUARE PLATE WITH SCALLOPED RIM SEASHELLS
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Vintage Bing  Grondah B  G Seashell Girl Porcelain Figurine  2315
Vintage Bing Grondah B G Seashell Girl Porcelain Figurine 2315
$21.99
Gorgeous Seashell Pottery Plate
Gorgeous Seashell Pottery Plate
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Vintage Villeroy  Boch Seashell Design Covered Serving Dish Cat7B014
Vintage Villeroy Boch Seashell Design Covered Serving Dish Cat7B014
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Vintage Signed Lenox Rare Pink Sea Shell Clam Floral Planter Centerpiece Bowl
Vintage Signed Lenox Rare Pink Sea Shell Clam Floral Planter Centerpiece Bowl
$29.99
BELLEEK IRELAND SEA SHELL CUP DARK GREEN MARK
BELLEEK IRELAND SEA SHELL CUP DARK GREEN MARK
$10.00
Vntg NORITAKE M DRESDLINA Hpainted Shell Sea Fish 3 Section Divided Relish Tray
Vntg NORITAKE M DRESDLINA Hpainted Shell Sea Fish 3 Section Divided Relish Tray
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BELLEEK CUP AND SAUCER SET SEASHELL THEME
BELLEEK CUP AND SAUCER SET SEASHELL THEME
$15.00
Lenox Aegean Sea Shell Candy Soap Trinket Dish w Gold Trim 5 x 575 inches
Lenox Aegean Sea Shell Candy Soap Trinket Dish w Gold Trim 5 x 575 inches
$9.99
Royal Doulton Woodward English bone china SUGAR BOWL  CREAMER BLUE SEASHELL
Royal Doulton Woodward English bone china SUGAR BOWL CREAMER BLUE SEASHELL
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SCARCE Hull Ebb Tide Pink and Gray Mermaid Seashell Planter undamaged
SCARCE Hull Ebb Tide Pink and Gray Mermaid Seashell Planter undamaged
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LOT OF 4 Royal Doulton Woodward English bone china SOUP SALAD BOWL BLUE SEASHELL
LOT OF 4 Royal Doulton Woodward English bone china SOUP SALAD BOWL BLUE SEASHELL
$9.95
BELLEEK IRELAND SEA SHELL PATTERN SUGAR CUP GREEN MARK 25 H
BELLEEK IRELAND SEA SHELL PATTERN SUGAR CUP GREEN MARK 25 H
$9.99
LOT OF 4 Royal Doulton Woodward English bone china BREAD PLATE BLUE SEASHELL
LOT OF 4 Royal Doulton Woodward English bone china BREAD PLATE BLUE SEASHELL
$9.95
LOT OF 4 Royal Doulton Woodward English bone china CUPS  SAUCERS BLUE SEASHELL
LOT OF 4 Royal Doulton Woodward English bone china CUPS SAUCERS BLUE SEASHELL
$9.95
Vintage Gerold Porzellan Seagull Seashell Cigar Ashtray Or Trinket Holder
Vintage Gerold Porzellan Seagull Seashell Cigar Ashtray Or Trinket Holder
$7.00
ARDALT LENWILE VINTAGE BISQUE SEASHELL DISH WITH CLASSIC GREEK ROMAN DESIGN
ARDALT LENWILE VINTAGE BISQUE SEASHELL DISH WITH CLASSIC GREEK ROMAN DESIGN
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Small Vintage Sea Shell Vase Held By a Woman Sitting Figurine Japan
Small Vintage Sea Shell Vase Held By a Woman Sitting Figurine Japan
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Fitz  Floyd 1991 SEAHORSE SEASHELL VASE 9 1 2
Fitz Floyd 1991 SEAHORSE SEASHELL VASE 9 1 2
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Vintage Blue Mountain Pottery Seashell Signature Green Black Glaze
Vintage Blue Mountain Pottery Seashell Signature Green Black Glaze
$19.99
Lot 5 BELLEEK IRELAND 2 Sunflower Vases 2 Seashell Plates+Vase Cream Lusterware
Lot 5 BELLEEK IRELAND 2 Sunflower Vases 2 Seashell Plates+Vase Cream Lusterware
$19.99
DANSK SCALLOP SEASHELL SEA SHELL BOWLS THREE 3 WHITE MADE IN FRANCE
DANSK SCALLOP SEASHELL SEA SHELL BOWLS THREE 3 WHITE MADE IN FRANCE
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