Introduction:

Ivory and bone are two materials that have been utilized throughout history for various artistic and functional purposes. However, distinguishing between the two can be challenging to the untrained eye. This article outlines eight essential steps to help you differentiate ivory from bone, whether you are an antique collector, artist, or simply curious about these natural materials.

Step 1: Observe the Surface Pattern

One of the major differences between ivory and bone is their surface patterns. Ivory typically exhibits a distinct pattern called Schreger lines. These lines create a cross-hatching or diamond-shaped pattern on the material’s surface. Bone, on the other hand, contains tiny spots called Haversian canals that resemble circular holes surrounded by layers of bone tissue.

Step 2: Check for Fissures

Look closely at the item for any visible cracks or fissures. As ivory ages, it tends to develop fissures on its surface due to shrinkage and changes in humidity, while bone may have few if any.

Step 3: Examine the Color

Though both ivory and bone can appear similar in color, there are some subtle variations to note. Ivory typically has a creamy white color with a gentle yellow tinge, while bone can range from pure white to beige or brownish hues.

Step 4: Determine Weight and Density

Ivory is denser and heavier when compared to bone. If you have access to samples of both materials, weigh them in your hand – you’ll notice that ivory feels heavier than a similarly sized piece of bone.

Step 5: Assess Translucency

Hold the item up to a light source such as natural sunlight or a lamp. As a translucent material, ivory will allow more light penetration than an opaque counterpart like bone.

Step 6: Evaluate Smoothness

Run your fingers over the surface of the item. Ivory generally has a smooth texture compared to bone, which may have a slightly rough feel due to the Haversian canals and tissue structure.

Step 7: Check for Odor

Though a less common method, you can heat a needle or pin and gently touch the item’s surface. Ivory will produce an acrid smell similar to burnt hair when heated, while bone will emit a more pungent odor.

Step 8: Consult an Expert

When in doubt, contact an experienced appraiser or specialist in antique artifacts. These professionals can provide you with expert advice and assistance in verifying whether you have an ivory or bone piece.

Conclusion:

Correctly identifying materials such as ivory and bone is essential for ensuring proper care, establishing value, and adhering to legal regulations surrounding the trade of certain artifacts. By following these steps and relying on expert guidance when needed, you’ll be on your way to confidently distinguishing between these two fascinating natural materials.