paulslab.com
Information about silicon carbide crystals, from Paul's Lab
http://www.paulslab.com/crystals/silicon-carbide.html
Silicon carbide is also known as carborundum. It can rarely be found in nature as moissanite, almost all of the silicon carbide on this planet is synthetic. It can be produced with many different types of crystal structures, usually it's polymorf (alpha silicon carbide).[1]. Chemical and Physical Information. Carborundum (EN,NL,BE). Black, blue, green. Opaque to translucent and transparent. Pyrolysis, vapor deposition. Used for drills and saw blades. Photo 1 - A piece of silicon carbide.[2].
paulslab.com
The use of crystals in various industries, from Paul's Lab
http://www.paulslab.com/crystals/crystals-industry-chemistry.html
Many substances can form crystals, which is very important for many different industries. Crystallization is used to purify sugar and salt, so its usesable for the food industry. Paul's Lab, 2008-2016 - About Paul's Lab.
paulslab.com
Information about diamonds, from Paul's Lab
http://www.paulslab.com/crystals/diamond.html
Diamond is one of the most precious gems and one of the toughest materials we know today.[1,2]. Diamond can be produced by placing carbon under high pressure and temperature. This can also be achieved by using explosives. Vapor deposition is also possible to make diamonds and ultrasound cavition is the newest technique to create synthetic diamonds.[1,2]. Chemical and Physical Information. Koolstof (NL,BE), diamant (NL,BE). Group, period, block. Photo 1 - Synthetic diamond.[3]. 30 mm x 30 mm.
paulslab.com
Information about gold crystals, from Paul's Lab
http://www.paulslab.com/crystals/gold.html
Gold is one of the elements from the periodic system and very valuable.[1]. Gold crystals can be made by vapor deposition.[1]. Chemical and Physical Information. Group, period, block. A very precious metal. Photo 1 - A gold crystal.[2]. 3 mm x 1 mm x 1 mm. Crop, de-shadow" class="PopBoxImageSmall" title="Click to magnify/shrink." onclick="Pop(this,50,'PopBoxImageLarge')" style="height:139px;width:150px;padding-top:11px". Photo 2 - Microscope photo of a gold crystal.[2]. 2 mm x 1 mm x 1 mm.
paulslab.com
Information about copper chloride crystals, from Paul's Lab
http://www.paulslab.com/crystals/copper-chloride.html
Copper chloride can be made from copper sulfate and sodium chloride.[1]. Copper chloride crystals can be made from a solution by evaporating it or from a supersaturated solution by cooling it down gradually. Chemical and Physical Information. Copper(II) chloride, dihydrate. Koper chloride (NL,BE). 7447-39-4 (anhydrous), 10125-13-0 (dihydrate). Brown (anhydrous), green (dihydrate). Brown (anhydrous), green (dihydrate). Toxic, harmfull, very corrosive, very poluting. Dry, not in a metal container.
paulslab.com
Homepage of Paul's Lab
http://www.paulslab.com/index.html
Welcome to Paul's Lab, THE source for information about crystals, minerals, and chemicals. You can find here experiments, articles, photos and videos of crystals. Check out the webshop for crystal jewellery, crystals, chemicals, experiment kits and (element) samples. Here is an overview of the things I offer on my website:. Learn everything about crystals. What are they, what are their properties and how can you make them? Learn how to conduct your own experiments and how to grow you own crystals!
paulslab.com
Information about vanadium crystals, from Paul's Lab
http://www.paulslab.com/crystals/vanadium.html
Vanadium is one of the elements from the periodic system.[1]. Vanadium crystals can be produced by vapor deposition and the Arkel-de Boer process (also called crystal bar process).[1]. Chemical and Physical Information. Group, period, block. Black, green, silver. Gas deposition and Arkel-de Boer process. Oxidizes readily in air and it's paramagnetic. Photo 1 - A vanadium crystal.[2]. 3 mm x 1 mm x 1 mm. The black color is from an oxide layer on the surface. 2 mm x 1 mm x 1 mm.
paulslab.com
Information about crystals, from Paul's Lab
http://www.paulslab.com/information.html
And what are minerals? How are crystals made? Can you make crystals out of water or iron? I hope I can answer all of these questions, so that you can get a clear picture of crystals. Crystals are one of the forms a material can take on. Crystals always have a certain structure; an ordering of its atoms or molecules. This order is different for every material, which determines its properties; including the way it looks and behaves. I have divided the information in three big sections:.
paulslab.com
Crystals in art and culture, from Paul's Lab
http://www.paulslab.com/crystals/crystals-culture-art.html
Paul's Lab, 2008-2016 - About Paul's Lab.
paulslab.com
Information about chrome alum crystals, from Paul's Lab
http://www.paulslab.com/crystals/chrome-alum.html
Chrome alum is one of the possible combinations of alum. There is also potassium alum. And ammonium alum. Chrome alum was formerly used in the leather tanning industry. It normally forms a dodecahydrate, but it can also form monohydrates (H. O), dihydrates (2H. O) and hexahydrates (6H. Chemical and Physical Information. Chromium(III) potassium sulfate, dodecahydrate. Chroom aluin (NL,BE). Solution vaporization, supersaturated solution cooling. Dry and below 50 °C. Photo 1 - Chrome alum crystal.[2].