Shopping on line can be easy, simple and save you lots of money. It can also take a lot of your time, frustrate you, and result in unwanted purchases. Now the same can be said for regular high street shopping, but with the vast opportunity presented by the Internet it will pay you to spend a few minutes reading this and understanding how to better optimize your Sand shopping experience:
1. Compare - without doubt the biggest advantage that the Sand offers shoppers today is the ability to compare thousands of Sand at a time. This is a great thing, but not necessarily all the time! Too much can be daunting at times so take advantage of the great comparison sites and where possible let them do the hard work for you.
2. Research - if it has been said it will be on the internet. Ignorance is no longer a justifiable reason for buying the wrong thing. Take the time to research in detail everything that you could possible want to know about
3. Testimonials - don't know anybody that has bought a Sand? Wrong! If the Sand is good the internet will let you know. Use the Internet as a friend and get testimonials before you buy.
4. Questions - Got a question about Sand then search the Forums, FAQ's, Blogs etc. Don't be afraid to ask .....
5. Reputation - Never heard of the company selling Sand? Don't worry, no reason why you should know every company in the world, but you know someone that does! Use the internet to find out what people are saying about Sand and build up a picture of their reputation for sales, returns, customer service, delivery etc.
6. Returns - still worried that even after all of the above your Sand wont be what you want? Check out the returns policy. There is so much competition now that someone, somewhere is bound to offer the terms that you are comfortable with.
7. Feedback - happy with your Sand then let people know, after all you are depending on others people input in your buying decision, so why not give a little back.
8. Security - check for the yellow padlock on the Sand site before you buy, and the s after http:/ /i.e. https:// = a secure site
9. Contact - got a question about Sand, or want to leave a comment then check out the sites contact page. Reputable companies have them and respond.
10. Payment - ready to pay for your Sand, then use your credit card or PayPal! Be aware of companies that don't accept them, there may be genuine reasons but given the huge amount of choice you have when buying online there is no reason at all not to buy via credit card or PayPal.
Sand is a granular material made up of fine mineral particles. It is a naturally occurring, finely divided
rock (geology).
Sand comprises particles, or granules, ranging in
diameter from 0.0625 (or mm) to 2
millimeters. An individual particle in this range size is termed a
sand grain. The next smaller size class in
geology is
silt: particles smaller than 0.0625 mm down to 0.004 mm in diameter. The next larger size class above sand is gravel, with particles ranging from 2 mm up to 64 mm (see particle size for standards in use). Sand feels gritty when rubbed between the fingers (silt, by comparison, feels like flour). Sand is commonly divided into five sub-categories based on size: very fine sand (1/16 - 1/8 mm diameter), fine sand (1/8 mm - 1/4 mm), medium sand (1/4 mm - 1/2 mm), coarse sand (1/2 mm - 1 mm), and very coarse sand (1 mm - 2 mm). These sizes are based on the Particle size, where size in Φ = -log base 2 of size in mm. On this scale, for sand the value of Φ varies from -1 to +4, with the divisions between sub-categories at whole numbers.
Constituents of sand
The most common constituent of sand, in inland continental settings and non-
tropical coastal settings, is
silica (silicon dioxide, or SiO2), usually in the form of quartz, which, because of its chemical inertness and considerable hardness, is resistant to
weathering.
The composition of sand is highly variable, depending on the local rock sources and conditions. The bright
coral sand found in tropical and subtropical coastal settings are eroded
limestone and may contain coral and shell fragments in addition to other organic or organically derived fragmental material.http://www.susanscott.net/Oceanwatch2002/mar1-02.html The gypsum sand dunes of the
White Sands National Monument in New Mexico are famous for their bright, white color. Arkose is a sand or sandstone with considerable
feldspar content, derived from the weathering and
erosion of a (usually nearby) granite. Some sands contain magnetite,
chlorite group,
glauconite or
gypsum. Sands rich in magnetite are dark to black in color, as are sands derived from volcanic basalts and
obsidian. Chlorite-glauconite bearing sands are typically green in color, as are sands derived from basalt (lava) with a high olivine content. Many sands, especially those found extensively in Southern Europe, have iron impurities within the quartz
crystals of the sand, giving a deep yellow colour. Sand deposits in some areas contain
garnets and other resistant minerals, including some small
gemstones.
Sand is transported by wind and water and deposited in the form of
beaches,
dunes, bar (landform),
bar (landform) and related features.
Study of sand
Study of individual grains can reveal much historical information as to the origin and kind of transport of the grain. Quartz sand that is recently weathered from
granite or
gneiss quartz crystals will be angular. It is called
sharp sand in the building trade where it is preferred for concrete, and in gardening where it is used as a soil amendment to loosen clay soils. Sand that is transported long distances by water or wind will be rounded, with characteristic abrasion patterns on the grain surface. Desert sand is typically rounded.
People who collect sand as a hobby are known as
arenophiles or psammofiles.
Uses of sand
(DB class 403) releases sand from several bogies to the rails.
- Sand is often a principal component of concrete.
- Molding sand, also known as foundry sand, is moistened or oiled and then shaped into molds for sand casting. This type of sand must be able to withstand high temperatures and pressure, allow gases to escape, have a uniform, small grain size and be non-reactive with metals.
- It is the principal component in glass manufacturing.
- Graded sand is used as an abrasive in sandblasting and is also used in media filters for filtering water.
- Brick manufacturing plants use sand as an additive with a mixture of clay and other materials for manufacturing bricks.
- Sand is sometimes mixed with paint to create a Texture (crystalline)d finish for walls and ceilings or a non-slip floor surface.
- Sandy soils are ideal for certain crops such as watermelons, peaches, and peanuts and are often preferred for intensive dairy farming because of their excellent drainage characteristics.
- Sand is used in Landscape engineering, it is added to make small hills and slopes (for example, constructing golf courses).
- Beach nourishment - transportation to popular beaches where seasonal tides or artificial changes to the shoreline cause the original sand to flow out to sea.http://www.npr.org/templates/story/story.php?storyId=12026379
- Sandbags are used for protection against floods and gun fire. They can be easily transported when empty, then filled with local sand.
- Sand castle building is a popular activity. There are competitive sand castle building competitions (See sand art and play).
- Sand animation is a type of performance art and a technique for creating animations.
- Aquarium are often lined with sand instead of gravel. This is a low cost alternative which some believe is better than gravel.
- Railroads use sand to improve the traction of wheels on the rails.
Hazards
about to bury itself in sand While sand is generally harmless, one must take care with some activities involving sand such as
sandblasting. Bags of silica sand used for sandblasting now carry labels warning the user to wear respiratory protection and avoid breathing the fine silica dust. There have been a number of lawsuits in recent years where workers have developed silicosis, a lung disease caused by inhalation of fine silica particles over long periods of time. Material safety data sheets (MSDS) for silica sand state that "excessive inhalation of crystalline silica is a serious health concern".
In areas of high pore water pressure sand can partially liquefy to form
quicksand. Quicksand, once dried, produces a considerable barrier to escape for creatures caught within, who often die from exposure as a result.
See also
References
External links
- Beach Sand: What It Is, Where It Comes From and How It Gets Here-- Beaufort County Library
Sand is a
granular material made up of fine mineral particles. It is a naturally occurring, finely divided rock (geology).
Sand comprises particles, or granules, ranging in diameter from 0.0625 (or mm) to 2 millimeters. An individual particle in this range size is termed a
sand grain. The next smaller size class in
geology is
silt: particles smaller than 0.0625 mm down to 0.004 mm in diameter. The next larger size class above sand is
gravel, with particles ranging from 2 mm up to 64 mm (see particle size for standards in use). Sand feels gritty when rubbed between the fingers (silt, by comparison, feels like flour). Sand is commonly divided into five sub-categories based on size: very fine sand (1/16 - 1/8 mm diameter), fine sand (1/8 mm - 1/4 mm), medium sand (1/4 mm - 1/2 mm), coarse sand (1/2 mm - 1 mm), and very coarse sand (1 mm - 2 mm). These sizes are based on the Particle size, where size in Φ = -log base 2 of size in mm. On this scale, for sand the value of Φ varies from -1 to +4, with the divisions between sub-categories at whole numbers.
Constituents of sand
The most common constituent of sand, in inland continental settings and non-tropical coastal settings, is
silica (silicon dioxide, or SiO2), usually in the form of
quartz, which, because of its chemical inertness and considerable hardness, is resistant to
weathering.
The composition of sand is highly variable, depending on the local rock sources and conditions. The bright coral sand found in tropical and subtropical coastal settings are eroded
limestone and may contain coral and shell fragments in addition to other organic or organically derived fragmental material.http://www.susanscott.net/Oceanwatch2002/mar1-02.html The gypsum sand dunes of the
White Sands National Monument in New Mexico are famous for their bright, white color. Arkose is a sand or sandstone with considerable
feldspar content, derived from the weathering and
erosion of a (usually nearby)
granite. Some sands contain
magnetite, chlorite group, glauconite or
gypsum. Sands rich in magnetite are dark to black in color, as are sands derived from volcanic basalts and
obsidian. Chlorite-glauconite bearing sands are typically green in color, as are sands derived from basalt (
lava) with a high olivine content. Many sands, especially those found extensively in Southern Europe, have iron impurities within the quartz crystals of the sand, giving a deep yellow colour. Sand deposits in some areas contain garnets and other resistant minerals, including some small
gemstones.
Sand is transported by wind and water and deposited in the form of
beaches, dunes, bar (landform), bar (landform) and related features.
Study of sand
Study of individual grains can reveal much historical information as to the origin and kind of transport of the grain. Quartz sand that is recently weathered from
granite or
gneiss quartz crystals will be angular. It is called
sharp sand in the building trade where it is preferred for concrete, and in gardening where it is used as a soil amendment to loosen clay soils. Sand that is transported long distances by water or wind will be rounded, with characteristic abrasion patterns on the grain surface. Desert sand is typically rounded.
People who collect sand as a hobby are known as arenophiles or psammofiles.
Uses of sand
(DB class 403) releases sand from several bogies to the rails.
- Sand is often a principal component of concrete.
- Molding sand, also known as foundry sand, is moistened or oiled and then shaped into molds for sand casting. This type of sand must be able to withstand high temperatures and pressure, allow gases to escape, have a uniform, small grain size and be non-reactive with metals.
- It is the principal component in glass manufacturing.
- Graded sand is used as an abrasive in sandblasting and is also used in media filters for filtering water.
- Brick manufacturing plants use sand as an additive with a mixture of clay and other materials for manufacturing bricks.
- Sand is sometimes mixed with paint to create a Texture (crystalline)d finish for walls and ceilings or a non-slip floor surface.
- Sandy soils are ideal for certain crops such as watermelons, peaches, and peanuts and are often preferred for intensive dairy farming because of their excellent drainage characteristics.
- Sand is used in Landscape engineering, it is added to make small hills and slopes (for example, constructing golf courses).
- Beach nourishment - transportation to popular beaches where seasonal tides or artificial changes to the shoreline cause the original sand to flow out to sea.http://www.npr.org/templates/story/story.php?storyId=12026379
- Sandbags are used for protection against floods and gun fire. They can be easily transported when empty, then filled with local sand.
- Sand castle building is a popular activity. There are competitive sand castle building competitions (See sand art and play).
- Sand animation is a type of performance art and a technique for creating animations.
- Aquarium are often lined with sand instead of gravel. This is a low cost alternative which some believe is better than gravel.
- Railroads use sand to improve the traction of wheels on the rails.
Hazards
about to bury itself in sand While sand is generally harmless, one must take care with some activities involving sand such as
sandblasting. Bags of silica sand used for sandblasting now carry labels warning the user to wear respiratory protection and avoid breathing the fine silica dust. There have been a number of lawsuits in recent years where workers have developed silicosis, a lung disease caused by inhalation of fine silica particles over long periods of time. Material safety data sheets (MSDS) for silica sand state that "excessive inhalation of crystalline silica is a serious health concern".
In areas of high
pore water pressure sand can partially liquefy to form quicksand. Quicksand, once dried, produces a considerable barrier to escape for creatures caught within, who often die from exposure as a result.
See also
References
External links
- Beach Sand: What It Is, Where It Comes From and How It Gets Here-- Beaufort County Library
Sand - Wikipedia, the free encyclopedia
Sand is a naturally occurring granular material composed of finely divided rock and mineral particles. As the term is used by geologists, sand particles range in diameter from 0 ...
Sand Homepage
CONTACT US: by Email at or write to: Mrs Stella Huyshe-Shires Sand, Sidbury, Sidmouth, Devon, EX10 0QN or telephone +44 (0)1395 597230
Nearline Solutions, Corporate Information Memory, Service Level ...
Learn how SAND/DNA software works with:
Definition: sand from Online Medical Dictionary
The Online Medical Dictionary is a searchable dictionary of definitions from medicine, science and technology.
Sand Martins Golf Club - Wokingham, Berkshire, UK
A course located in Wokingham, Berkshire.
Sand Pebbles
Sand Pebbles Bed & Breakfast in Hope Cove Nr Salcombe, South Devon overlooks beautiful Devon countryside and the sea. 9 en-suite rooms. 4 Star Guest House.
Sand Bay Leisure Resort, entertainment resort in Weston-super-Mare ...
Martyn Leisure Breaks Just For Adults offer high-quality, value-for-money short breaks, specifically tailored to suit the over 40s market.
Crazy Sand - Wacky Test Tubes - Discovering Gemstones
Instructions for using Crazy Sand, Wacky Test Tubes, Discovering Gemstones ... Crazy Sand Spring/Summer Crazy Sand 2008. Introduction to Crazy Sand ; Crazy Sand Retail Kits; Crazy ...
Solid Sand Studios
Size A-A +
Sculptures in Sand, the home of Sand Sculptor Mark Anderson - UK
Sand sculptures created by Mark Anderson for functions, festivals, museums, galleries, music videos, film promotions etc.
