titanium for sure
Titanium is a durable, lightweight, and extremely useful metal derived from minerals like ilmenite and rutile.
It is non-toxic, durable and lightweight.
Heys USA is know to make lightweight, durable luggage.
minerals that are heavy,durable and chemically resistant are likely to be found in depsits
The Singer Portable Sewing Machine 2250 (Sold at Target for $89.99) has good customer reviews and is known to be lightweight and portable, as well as durable. The Singer brand is one of the most popular sewing machine brands, and has proven to be durable over time.
Crystals
Steel is a good shelving metal. It is strong, relatively lightweight, and durable.
It's hard to have both,but I really like Case Logic's case.
One resource you can try using is http://www.uniquevendingcarts.com/. Their products are durable and lightweight.
Yes simple and lightweight construction would be perfelect for your needs. It is also durable.
Camp Chef makes a low cost twelve inch lightweight Dutch Oven from Aluminum. They can be found at the Amazon.com web site.
placer deposits