Silica sands and quartz sands (HS: 250510) Product Trade ...

Overview This page contains the latest trade data of Silica sands and quartz sands. In , Silica sands and quartz sands were the world's th most traded product, with a total trade of $1.69B. Between and the exports of Silica sands and quartz sands grew by 9.41%, from $1.55B to $1.69B. Trade in Silica sands and quartz sands represent 0.% of total world trade.

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Silica sands and quartz sands are a part of Sand.

Exports In the top exporters of Silica sands and quartz sands  were United States ($586M), Australia ($248M), Belgium ($96.4M), Malaysia ($84.6M), and Germany ($78.6M).

Imports In the top importers of Silica sands and quartz sands were China ($297M), Canada ($252M), Japan ($148M), Chinese Taipei ($80.1M), and Italy ($79.3M).

Ranking Silica sands and quartz sands ranks nd in the Product Complexity Index (PCI).

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Description Silica sand is used in the manufacturing of glass, mortar, paint, rubber, and as a filler in various products. Quartz sand is used in the manufacture of abrasives, cement, and glass.

Sand evokes wonderful memories. Burying your toes in the sand, sandy shoes on the back porch, building sand castles, or the glory of waves lapping up on the sand all have special meaning. The mere mention of the word &#;sand&#; can bring a smile to one&#;s face, a relaxing calm, and a longing for the shore.

Hidden on every sandy shore is a mystery waiting to be solved. Each shoeful of sand holds many secrets. The story of sand is remarkable. How far did it travel and through what lands did it pass? Did it come from a blazing volcano, a wave-battered coral reef, or an ancient mountain? Sands betray their complex history to a skilled sleuth. A careful observer can read this history and tell the source of the sand, the climate at its source, the distance it traveled, and the character of the place where it was found. A close look at sands from around the world reveals their basic origins and how they vary with differences in climate and energy.

There are four common sources for sand: weathering of continental granitic rocks; weathering of oceanic volcanic rocks; skeletal remains of marine life; and chemical grains precipitated from water. Each source supplies different basic building blocks that will be changed by their journey to the sea. Continental granitic rocks are rich in pink and white blocky feldspars, platy and shiny flakes of mica, and glassy spheres of quartz. The first step in granite weathering produces a blocky particle called grus, and each grus particle is composed of several crystals. Grus quickly breaks down to individual crystals as it starts its journey. Along the way, some minerals break down to become soil, while others become physically abraded, smoothed and polished. Physical abrasion gradually causes grains to smooth and become spherical. They may become polished or matted.

Quartz is the most stable mineral, so sands derived from weathering of granites gradually become enriched in quartz as the other grains are dissolved and broken down. This chemical purification or increase in maturity may require thousands of miles of travel and may take thousands of years! Some sands have their journey interrupted by millennia when they are deposited in an environment. Pure quartz sand beaches belie their history &#; they are made up of the very old and wise travelers. Usually, quartz sand beaches also include other minor mineral types. In granites, the minor minerals are visually darker and usually denser. The so-called heavy minerals are different for the different source rocks and can be used to trace sands back to their origins. On many beaches, heavy minerals are selectively concentrated and give rise to the beautiful streaking patterns found in the intertidal zones.

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