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What is an advantage of crystal vases over glass vases?
Crystal vases have thicker walls than those of glass vases. These thicker walls give an advantage over glass vases for breakage. Glass vases are also harder to clean than crystal vases, as spots will often show up more on glass vases than on crystal vases.
What is the difference between a stone and a crystal?
All crystals are considered glass, however only certain types of glass can be considered crystals. In Europe, glass items generally have greater than four percent but less than ten percent monoxide are considered glass. For you math learners, 4< glass <10 . Generally to be considered crystal, it must have between 10-30% monoxide.
What is better to bead with - glass pearls or crystal pearls?
When it comes to pearls I don't know that the glass variety is better or worse than the crystal. Both of them will be heavy which is a consideration if you're considering a large project. The crystal based pearls will be more expensive than the glass pearls.
What are crystal glasses made out of?
Crystal glasses are not made out of crystal. They're made of regular glass in which the calcium is replaced with lead oxide or zinc, causing them to sparkle more than the usual type of glass.
Will crystal break easier than glass?
The addition of up to 30% lead oxide, ( though most manufacturers are reducing it to 24%, the legal minimum to be called lead crystal ), gives crystal glass a high index of refraction which makes it sparkle when cut at sharp angles, is softer to cut, and gives the glass a distinctive long lasting ringing tone when it is struck gently with a hard object like a fingernail. The lead may under very extreme conditions leach out into acidic beverages, like white wine or orange juice ( if stored over night in a fridge for instance). The glass is also more fragile and subject to temperature shock: Crystal glass will often break when cold water is poured into a hot glass or vice versa. Glass is a liquid in the sense that it does indeed flow, but it flows over an extensive period of time. The difference between a crystal and glass, is that a crystal has a homogenous solid formed by a repeating,
Is crystal cup is dangerous than regular glass?
yes crystal cup is dangerous then regular glass because it is made by a special mineral
What is fine crystal?
Fine crystal is considered high quality glass. In order for the product to be classified as crystal rather than glass, at least 10% lead oxide has to be present.
How do you identify a waterford lamp?
With so many fake waterford items made, identifying genuine waterford lamps can be difficult. Look for a gold sticker with green seahorse emblem on the bottom, or look for "waterford" etched into the bottom. To tell the difference between a glass fake and a crystal genuine, check for thickness, light, cut, and weight. Crystal is thicker than glass, crystal is clear while glass has a slight yellow or green tint, glass has rougher edges while crystal has a more smooth cut, and crystal is heavier than glass.
What are the reasons why you still use plastic bottles?
plastic is cheaper than some other materials and it keeps the fluid in it fresh
How do you test crystal glassware for authenticity?
To test crystal glassware for authenticity you can weigh it as crystal is heavier than glass. In addition crystal sparkles in light while glass doesn't.
WHAT IS Faux Crystal?
Faux crystal is normally pressed glass rather than hand cut. You can normally tell by finding the mold seams in the glass.
How do you tell between topaz and quartz?
To distinguish topaz from glass or quartzes (e.g. citrine), we should observe the hardness. Topaz is a fairly hard gemstone, meaning it is resistant to scratching. It is 8 on the Mohs hardness scale (diamond is 10, sapphire is 9). A scratch test will determine whether a stone is topaz in most cases. You can perform a scratch test by taking a piece of quartz or other material with a hardness around 7 and scratch it against the "topaz". If you don't want to risk the stone scratching, even if it's fake, you can choose to scratch it on the girdle (the unpolished rim around the gem). There is a lot more information on this site: http://www.shopgemstones.com/topaz-treatments-and-synthetics.html
