There are six major large American currency notes that have been used throughout the nation’s history. Knowing these bills and the differences between them will make it easier for currency enthusiasts to find the perfect notes for their collections.

Even with modern technology, a quality watch can take weeks or months to manufacture. Though the majority of watchmakers would very much like to produce their watches faster, it often isn’t cost effective, and the reason for this is the complexity involved in the watch design, especially their movements.

Aventurine is a type of quartz gemstone that is prized for its sparkle, metallic inclusions and translucency. Muscovite mica is one of its key ingredients, which gives it a green, blue or silver sheen. It produces an amazing effect called aventuresence that separates it from other stones.

The demand for gold continues to increase in the technology sector. According to the WGC, or World Gold Council, the yellow metal will play a key role in the development of electrical vehicles, but this is just one of the many applications the precious metal will be needed for.

The one ounce American Platinum Eagle coin was first introduced in 2010 and is absolutely stunning. It was released as part of the Preamble Series which first began in 2009 and commemorates the most important American democracy concepts. The theme for the 2010 edition is the establishment of justice, which is the second Preamble principle.

Ruthenium is related to platinum yet it has a number of unique characteristics. It is harder and rarer but more brittle, and has a higher melting point. Its spectacular sheen makes it ideal for high end jewelry.