To identify real tortoiseshell from material substitutes, apply a hot pin to a hidden spot. If the smell resulting from the hot pin smells similar to burned hair and a black spot develops, the item is likely real tortoiseshell; however, if the burning smells like plastic, then it is not.Know More
Tortoise shell is a material produced from the shells of tortoises and turtles. The hawksbill turtle is the species mostly exploited for the material, causing it to become an endangered species. Stemming from ancient times in both the West and the East, real tortoise shell was often used for items like combs, frames, furniture ornaments, and more. However, by the 1970s real tortoise shell use was officially banned.
To buy or sell real tortoise shell legally, it must be at least a hundred years old and a genuine antique, or had originated from a private collection. Due to the legal aspects of dealing with tortoiseshell, after the ban, plastic, celluloid, bone and horn become common substitutes.
With real tortoiseshell, there can be slight unevenness due to the nature of the shell that molded materials do not have. For genuine tortoiseshell, one can typically see very fine knife marks from where the shell was carved by hand.Learn more about Collecting
Authentic Montblanc pens contain small serial numbers around the ring of the pen, have the word "Montblanc" etched around the ring and are made with proprietary resin that glows red when a flashlight is shined through the product, according to The Counterfeit Report. Although secondary dealers sell these high-end fountain pens, the only sure way to get an authentic Montblanc pen is to buy from an authorized dealer.Full Answer >
Clams with a tightly closed shell are alive and can be safely eaten. According to the U.S. Food and Drug Administration, tapping the shell of an open clam that is alive causes the shell to immediately close. Clams that remain open after the shell is tapped are dead or dying and should not be eaten. Cracked or broken shells also indicate the clam is dead.Full Answer >
The age of a seashell is dependent on a number of factors, including species of the animal carrying the shell. For bivalve organisms, the age of the shell can be determined by looking at cross-sections of the shell. An alternation in color is thought to represent a year's growth.Full Answer >
Physical characteristics in mature box turtles that may indicate gender are the shape of the bottom of the shell, the thickness of the tail, the length of the claws, the color of the eyes and the location of the anus. The bottom of the shell is normally curved inward on males and flat or curved outward on females.Full Answer >