I bought a huge quartz crystal point from China, 6 inches long and 1 inch wide at base, 1/2 wide at top. It has many quot;inclusionsquot; but so does fake glass quartz these days. The sides are smooth so it was obviously cut into this shape and polished -- natural quartz points have horizontal ridges/lines on the facet faces. When I drop a rock on it, I hear a loud clinking sound, so it seems like glass. It also produces a strong rainbow effect from sunlight, and real quartz isn't supposed to right? Also I have a large nickel size faceted garnet that seems like glass. I have natural faceted garnets and lab made garnets, and this one seems too light and perfectly clear to be a real garnet since it would be worth hundreds of dollars for this size. The edges have orange color, which I don't think is possible for garnet is it? I will be buying a special light filter to check for sure if it's glass.
Quartz sand is simply sand (which is any particle that is between 2 mm and .0625 mm in size) that is made of quartz (which is a mineral that is composed of silica, SiO2). You discover it by looking for it. Commonly, beach , river and dune deposits are rich in quartz sand. Quartz sand is desirable in the cement industry because quartz silica is non-reactive with the cement in concrete. This means that when you mix the sand in with the cement, gravel, and water, it won't react and break the concrete down.
This Site Might Help You. RE: Who discovered quartz???????????????? Who discovered quartz and when??
In what way discovered? Quartz has always been around and from very early in man's history it was recognised as having some useful properties. However, Nicholas Steno was the first to describe the crystal structure of quartz in the 17th Centruy.
