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is meant by contamination). It is easy to "contaminate" a diamond CVD film with you name it. How big is the difference between contaminating a 1 inch cube (say) of pure iron vs. pure diamond? Not much. Ion implantation into (the near surface of) a diamond is also trivial. If the editors meant that NATURAL diamonds (on Earth) are typically quite pure, then SAY THAT! I suspect, but just an ignorant suspicion, that diamond must transition between impure high-carbon 'stuff' to the pure allotrope. I expect that at some point there's LOTS of contaminants in the nascent diamond. Aren't most natural diamonds black? What's that?? (the preceding is a digression, I'm ignorant on their natural occurrence.) There are so many FALSE statements in this article that it needs a total rewrite. There are many other bloopers but I don't have the patience to list them all. (For instance, did you know that hydrogen will leave an ash when burnt? No? Well, just read this article. When a diamond burns (in O2), any contaminants are left as ash. Ridiculous. (as is the assumption of complete combustion of the carbon) Another false claim is that diamond contains the most atoms per unit volume. (aside: at first, I thought the editor meant per unit cell volume!, not sure why s/he used the word "unit" since it doesn't add clarity (but it is not wrong)). Estimates of hydrogen density in the sun's core is ~10,000 kg/m^3, and without qualifying pressure and temperature the claim is likely false. I could go on...)
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Wow, is this a bad article. The lead states:"Because the arrangement of atoms in diamond is extremely rigid, few types of impurity can contaminate it (two exceptions are boron and nitrogen)." This is absolute rubbish. It isn't its "rigidity" that gives bulk diamond its impermeability (if that's what
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for use in jewelry. Most natural diamonds were formed between 1Â billion and 3.5Â billion years ago, at depths between 150 to 250 kilometres (93 to 155Â mi) in the
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of any natural material, properties that are useful in major industrial applications such as cutting and polishing tools. In addition to its industrial uses,
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Please advise employees to confirm w office before removing landscaping. Thx
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under those conditions but at a negligible rate. Diamond has the highest
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123:Find sources:
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110:Verifiability
108:
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52:Learn to edit
49:
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41:
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32:
26:
22:
18:
17:
2641:
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2426:
2410:— Preceding
2383:
2365:
2358:
2350:
2344:
2333:
2195:Enhancements
1871:Fluorescence
1633:Section name
1586:
1566:Terms of Use
1491:
1462:project page
1451:
1448:Talk:Diamond
1447:
1365:
1359:
1313:
1284:project page
1277:
1273:
1209:
1185:Metalworking
1176:Metalworking
1169:
1148:Metalworking
1120:
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982:project page
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683:South Africa
679:Sierra Leone
640:
618:
578:
532:WikiProjects
515:
485:
468:
446:
434:Not promoted
427:
408:
396:Not promoted
389:
332:please do so
321:
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94:
19:This is the
2644:74.134.14.7
2565:Bell Island
2533:kimberlites
2334:There is a
1929:Exploration
1450:is part of
1276:is part of
969:WikiProject
471:In the news
268:written in
148:free images
31:not a forum
2660:Categories
2537:lamproites
2497:metastable
2165:Synthetics
1721:Mechanical
1662:Properties
475:column on
323:identified
2629:file page
2531:known as
2491:known as
2445:Main Page
2380:Chemistry
2250:Citations
2180:Simulants
2092:Marketing
1751:Toughness
1526:June 2004
556:Gemstones
520:is rated
465:Main Page
88:if needed
71:Be polite
21:talk page
2513:hardness
2509:graphite
2495:. It is
2372:RMCD bot
2307:142,379
2237:See also
2048:Industry
2034:In space
1736:Hardness
1590:contribs
675:Botswana
522:FA-class
415:Promoted
283:traveled
227:180Â days
186:Archives
56:get help
29:This is
27:article.
2619:history
2583:Archive
2480:Diamond
2453:Amakuru
2412:undated
2336:request
2304:142,379
2158:12,304
2130:13,435
2077:Cutting
2070:26,676
2055:45,627
1907:24,003
1900:Geology
1856:Clarity
1729:11,428
1669:43,929
1641:Section
1626:Diamond
1570:WP:PAID
1494:on the
1467:Geology
1458:geology
1411:Geology
1316:on the
1274:Diamond
1212:on the
1123:on the
1018:on the
764:on the
621:on the
467:in the
374:Process
314:Diamond
279:defense
154:WPÂ refs
142:scholar
25:Diamond
2296:1,215
2270:4,001
2231:5,637
2218:4,966
2203:1,613
2173:4,956
2145:4,971
2122:Mining
2115:4,998
2100:4,548
2085:6,022
2067:16,106
2042:3,911
2027:1,553
1997:1,179
1982:1,868
1967:3,889
1952:1,237
1937:1,562
1922:3,883
1879:1,354
1864:1,806
1849:6,669
1834:2,873
1819:1,989
1804:2,911
1789:1,719
1774:1,742
1759:1,792
1744:6,156
1714:3,846
1699:2,182
1684:4,505
1656:4,779
1643:total
1367:spoken
1096:Canada
1087:Canada
1043:Canada
991:Russia
973:Russia
925:Russia
737:Africa
728:Africa
671:Angola
666:Africa
528:scale.
377:Result
126:Google
2624:watch
2507:form
2483:is a
2301:Total
2293:1,215
2267:4,001
2228:5,637
2215:4,966
2200:1,613
2170:4,956
2142:4,971
2127:8,464
2112:4,998
2097:4,548
2082:6,022
2039:3,911
2024:1,553
1994:1,179
1979:1,868
1964:3,889
1949:1,237
1934:1,562
1919:3,883
1904:4,159
1876:1,354
1861:1,806
1846:6,669
1841:Color
1831:2,873
1816:1,989
1801:2,911
1786:1,719
1771:1,742
1756:1,792
1741:6,156
1711:3,846
1696:2,182
1681:4,505
1666:3,758
1653:4,779
1649:(Top)
1638:count
509:This
316:is a
275:color
169:JSTOR
130:books
84:Seek
2648:talk
2614:edit
2609:talk
2604:view
2535:and
2515:and
2457:talk
2431:, a
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