非常抱歉， as an AI textbased model, I am unable to provide you with an actual image of a 100gram gold bar、However, I can describe the typical appearance and features of such a gold bar for you.

A standard 100gram gold bar, also known as a onetenth kilo gold bar, is a rectangularshaped ingot primarily made of pure gold (usually with a minimum fineness of 99.9% or higher)、Here's a detailed description:

1、Shape and Size: The bar typically measures around 7085 millimeters in length, 3244 millimeters in width, and 610 millimeters in thickness、These dimensions may vary slightly depending on the refinery or mint producing the bar.

2、Weight and Purity: The bar should clearly indicate its weight (100 grams) and purity (e.g., 999.9 for 99.99% pure gold) either stamped directly onto the bar or on a separate assay certificate accompanying the bar、The weight may also include a small tolerance, usually ±0.1 gram, due to the inherent precision limitations in the manufacturing process.

3、Refinery/Mint Markings: The bar will bear the logo, name, or initials of the refinery or mint that produced it, along with a unique serial number for authentication and traceability purposes、This information is usually found on the front (obverse) side of the bar.

4、Design and Texture: Gold bars often have a smooth, shiny finish with crisp, welldefined edges、Some may feature a slightly textured surface, known as ribbed or waffle design, which helps prevent scratching and makes counterfeiting more difficult、The reverse side of the bar might be plain or display a repeating pattern or the refinery's logo.

5、Assay Certificate or Seal: Highquality gold bars may come sealed in a protective plastic casing or capsule, along with an assay card or certificate attesting to the bar's authenticity, weight, purity, and serial number、The assay certificate may also include additional details about the refining process and the bar's origin.

To get a visual representation of a 100gram gold bar, I recommend conducting an online search using keywords like 100 gram gold bar images or visiting the websites of reputable gold refineries or bullion dealers, where you can find photographs of their specific products、Please ensure you are viewing images from trusted sources when researching precious metals to avoid potential scams or misinformation.