Are diamonds the only gemstones that can scratch glass?

Diamonds are formed from carbon, with the inclusion of trace minerals -- in gemstone diamonds. Only about 20% of all diamonds mined are gemstones. Industrial diamonds are also formed from carbon, but their structure is not as consistent as those found in gemstones.

Generally, you can find the shiniest diamonds at the jewelery store, because only 20% of all diamonds mined are gemstones..

These diamonds are industrial diamonds. About 80% of all diamonds mined are classified as industrial diamonds, leaving only about 20% to be graded as gemstones.

Diamonds can only be scratched by other diamonds. Diamond is the hardest natural mineral.

No, diamonds are not the only stones that can cut glass. Any stone that is harder then 5.5 on the Moh's hardness scale can cut glass.

pyrite can scratch glass only

You can review the link below to view images of raw diamonds. Remember, about 80% of all diamonds mined are industrial diamonds and only 20% qualify as potential gemstones.

Jewelry can contain diamonds. Diamonds are also used as drilling or cutting tools. In fact, about 75% of all diamonds mined are used by industry leaving only 25% as viable gemstones.

No. Only another diamond can scratch a diamond.

No. A diamond can still be scratched by another diamond.

Diamond is the hardest mineral known. About 75% of diamonds mined are used by industry and only 25% qualify as gemstones. Gemstones are measured according to their clarity, colour, cut and carat weight.

No, emeralds are not hard enough to cut glass. Diamonds cut glass and they are the only gemstone with this capability.

In the realm of diamond gemstones -- only 20% of all diamonds mined, there are several places you can look for the answer you want: Types of diamonds is an entire category unto itself. Colours of diamonds is a separate category. Then there's another category of colours of 'white' diamonds. You can read more about each category, below.

Sinthetic diamonds are made only from carbon. False diamonds (not synthetic) are made from glass, zirconium dioxide, silicon carbide.

apatite can not scratch glass. it is considered number 5 1/2 on the Mohs Scale Of Hardness. Apatite is number 5 on the scale and can only scratch itself and all of the minerals lower on the scale.

The difference between Diamond and Glass is that, Glass is softer than the diamond. A diamond can easily scratch the glass. Glass is an inorganic product of fusion which has been cooled through the glass transition to a rigid condition without crystallizing. The reason why diamonds are more expensive is : Actually, diamond has many unequaled qualities. It is the hardest known substance, it is the greatest conductor of heat, it has the highest melting…

Cut and faceted gemstone diamonds reflect the light, which some call shiny. Raw diamonds are dull rocks. Only 20% are sorted out for processing as gemstones and are cut, graded, and polished into valuable gems. Eighty percent are industrial diamonds that are used to enhance precision tools.

Innumerable, really. Eighty percent of all diamonds mined are industrial diamonds, with a separate classification for valuation, including colour. Only 20% of all diamonds a gemstones, with a named colour. That said, because diamonds are natural, there are as many colours as Mother Nature provides. You can review the chart for 'white' diamond colour, below. As well, you can read the names of 27 types of coloured diamonds, below.

Not all diamonds are equally hard, remember Mohs scale is only that - a scale. Depending on the perfection of the crystal, diamonds may be harder or softer - but are all considered 10 on Mohs scale. The hardest diamonds come from a small region on New South Wales in Australia, and these are more useful for polishing of other diamonds.

Seventy-five percent of diamonds mined are used in industry, for cutting tools, and for polishing. Only twenty-five percent of all diamonds mined are used in gemstone production. As a commodity, then, diamonds fit into the same use categories as any other natural resource. You could say that gemstones are a by-product of diamond mining.

Diamonds are most useful in industrial applications, usually based on the mineral's supreme hardness. Transparency is one of the characteristics of gem-quality diamonds, which represent only 20% of all diamonds mined. From Wikipedia: "Specific gravity is the ratio of the density of a substance compared to the density (mass of the same unit volume) of a reference substance." You can read more about the specific gravity of gemstones, below. It explains how specific gravity is…

Comparatively, they are rare. Only one in 200 geographic areas where indicator minerals show the potential presence of diamonds actually contain diamonds. Eighty percent of all diamonds mined are not gem quality, but are industrial diamonds. The remaining twenty percent of diamonds mined have the potential to be gems, but must be sorted, cut and polished to become gemstones. Then, those that are coloured, flawless and large become the multi-million dollar objects you read about…

Diamonds are actually the strongest material, but you can also break it by burning it. Try it and you will see that a hard diamond has turned into many shattered pieces. If you rub it other diamonds, it will only make a little scratch!

From the Minerals site, below: "The luster of Diamond is excellent. Diamond exhibits great fire and brilliance, which gives it a shiny, freshly polished look. Rough Diamonds exhibit a greasy luster, but proper cutting give them a powerful adamantine luster. "Only synthetic substances and a few minor gemstones can reach or excel the refractive index of Diamonds."

Diamond is the hardest gemstone with hardness being 10. But hardness varies at octahedral faces of diamonds. So a diamond can only be scratched by a diamond itself.

Diamond is a gem, but not the only gemstone. Rubies, emeralds, sapphires and other stones can also be considered gemstones. The word gem can also be used to describe other nouns, such as a person: "She's a gem."

As in many places around the world they are used as gems in jewelry and similar decorations. Diamonds are also used in drill bits because diamond is the hardest known substance, meaning that the only thing that can scratch a diamond is another diamond.

Raw diamonds are formed deep within the earth's mantle from carbon, under very high heat and extreme pressure, then are erupted to the earth's surface through kimberlite pipes. Once picked up, diamonds are separated into industrial use and gem-quality use: only about 20% of all diamonds mined are useful as gemstones. Gemstones are reviewed and evaluated by a gemologist or diamond cutter, so that a plan can be developed to capitalize on the raw gem's…

No. Hardness is measured on the Mohs Scale, named after German Friedrich Mohs. On this scale Talc (the softest) measures 1, while Diamond (the hardest) measures 10. Glass has a Mohs' scale hardness of around 5.5, so anything above that will have the ability to scratch glass. For example, quartz (Mohs 7), hardened steel (Mohs 8), corundum (rubies and sapphires, Mohs 9),or diamond (Mohs 10). The Mohs scale is purely an ordinal scale, expressing relative…

The hardness of a mineral is categorized on the Mohs hardness scale with talc as 1 and diamond as 10. A mineral can only be scratched bya mineral that is as hard or harder than the first mineral. So talc can scratch talc but nothing else. A diamond can scratch every other mienral including itself. Cordundum with a hardness of 9 can't scratch diamonds but can scratch a lot of other minderals.

The streak of a diamond is transparent. First of all, diamond is spelled 'diamond'. Next, diamond might seem like it has a streak when it scratches something but that is only a scratch. Diamonds do not have a streak.

Not likely unless they are are really inexpensive stones (not diamonds, rubies, emeralds, etc). A ring can be Heavy Gold Electroplated with only a few cents worth of gold. If you are getting real gemstones, you should be getting solid gold.

First of all, diamond is spelled 'diamond'. Next, diamond might seem like it has a streak when it scratches something but that is only a scratch. Diamonds do not have a streak. Another Answer Diamond streak is white.

There is no hallmark for Gemstones , only for the gold or silver content. A Gemologist has to certify Gemstones.

It's a lot cheaper than mining them and synthetic gemstones made in the lab tend to be flawless. Synthetic gemstones are not fake, they are real and are often more beautiful but they are much cheaper to buy. Personally, I only buy synthetic gemstones.

It can be sharp, which makes it hazardous, so yes it can be hazardous. Glass is only dangerous if it is broken, because the pieces tend to be extremely sharp. Keep your kids away from broken glass to avoid any glass being stabbed in their heel.... I play with glass (not like hot potatoe or anything) but i use it for cooking sometimes and i have never ever cut my self with out breaking it…

It only shows which gemstone is harder than another one. Although a Diamond, at 10, will scratch a ruby or sapphire, at 9, Diamonds are 4x the hardness of rubies and sapphires.

The term "Type II" when referring to gemstones indicates the quality. Type II gemstones have a little less clarity than Type I but it only slightly detracts from the beauty of a stone.

Some gem-quality diamonds come from the ground in the shape of two pyramids joined at the base, with four 'faces' on each pyramid. This is an ideal, natural diamond. Very few natural diamonds are found with this ideal shape. (Diamond as a precious mineral was probably first admired based on a human picking up such a stone, more than 5,000 years ago.) Most diamonds as they are found, are mis-shapen with many faces. As well…

yes, minerals can only be scratched by other minerals with hardness equal or greater. thus this explains why a diamond can be cut and "polished" by dust or smaller diamonds

Only diamonds can cut diamonds.

Your answer depends on the chips. Some chips can only be used as abrasives to cut and polish other diamonds; other chips -- rather large chips -- can be cut and polished into smaller gemstones. Every diamond is valued individually by its cut, clarity, carat weight and colour.

Nothing. Only other diamonds can cut diamonds.

Diamond is the hardest mineral and is the only one that can scratch corundum. but in my opinion corundum will scratch corundum any mineral of the same hardness will scratch the other !

Only diamond can scratch corundum !

A raw stone of any gem can come in all the shapes and sizes of stones. A raw stone's value is only finalized once it has been cut and polished to show off its best qualities. To review some of the different cuts for gemstones, follow the link, below.

Assuming the scratch is on the front of the TV tube, it largely depends on how deep it is. Remember, the tube is a vacuum chamber, but the glass on the front can be around 3/8 inch thick, or thicker. To remove the scratch, you can go to the local hardware store and purchase some jewler's rouge. This is a very fine abrasive, usually red in color and generally sold in a stick form. Take…

The USA Only Imports diamonds, diamonds are not natural to the USA

Diamonds are so hard that they can only be cut by other diamonds. Diamonds are forever. (!) The bunt flew out of the diamond.

GCI stands for Gemological Center, Inc. They used to provide services certifying the gold content of jewelry, along with their main mission, which is the certification of diamonds and gemstones. Now they only do the latter, but manufacturers of gold jewelry that follow their guidelines still stamp GCI on their gold jewelry.