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diamond
Diamond is a solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. At room temperature and pressure, another solid form of carbon known as graphite is the chemically stable form, but diamond almost never converts to it. Diamond has the highest hardness and thermal conductivity of any natural material, properties that are utilized in major industrial applications such as cutting and polishing tools. They are also the reason that diamond anvil cells can subject materials to pressures found deep in the Earth.
Because the arrangement of atoms in diamond is extremely rigid, few types of impurity can contaminate it (two exceptions being boron and nitrogen). Small numbers of defects or impurities (about one per million of lattice atoms) color diamond blue (boron), yellow (nitrogen), brown (defects), green (radiation exposure), purple, pink, orange or red. Diamond also has relatively high optical dispersion (ability to disperse light of different colors).
Most natural diamonds have ages between 1 billion and 3.5 billion years. Most were formed at depths between 150 and 250 kilometres (93 and 155 mi) in the Earth's mantle, although a few have come from as deep as 800 kilometres (500 mi). Under high pressure and temperature, carbon-containing fluids dissolved minerals and replaced them with diamonds. Much more recently (tens to hundreds of million years ago), they were carried to the surface in volcanic eruptions and deposited in igneous rocks known as kimberlites and lamproites.
Synthetic diamonds can be grown from high-purity carbon under high pressures and temperatures or from hydrocarbon gas by chemical vapor deposition (CVD). Imitation diamonds can also be made out of materials such as cubic zirconia and silicon carbide. Natural, synthetic and imitation diamonds are most commonly distinguished using optical techniques or thermal conductivity measurements.
For Sale is Kahr PM9 “Black Diamond” in 9mm. Sub-Compact with 3.1” barrel. Comes with factory box, papers, night sights and (2)-6rd mags. Will Ship. Asking $395
I put this on a DMR build, maybe 100 rounds downrange, then decided to go a different direction.
Trigger works great. Having used just about every drop in unit…Triggertech products are, in my opinion, the best. That being said, this trigger no longer has a home and it’s money that can be used...
Beautiful 14K white gold wedding ring. Diamond weighs .67 carat (lab grown), surrounding diamonds weigh separately. Never used, never worn, original paperwork/diamond info in hand. Cash only, original price was $2,247, yours for $750. Contact me via PM.
Anyone know if the boat ramps are still useable this weekend? Was thinking about one last trip for the year. ODOT cams show snow on the ground but the roads look clear .
Looking to sell or trade. Bought this bow for my son and he never got into it. Been sitting around long enough. Left handed Diamond infinite edge compound bow. It is full adjustable from 5# to 70#. It’s a grow with your kid type of bow. Excellent condition.
Looking for $250 cash or trade for...
6-24x50, f.f.p, mildot reticle, new other than set in rings, will come with the factory box. No shipping, local transfer only, cash price only at $175
Poss trade for a 9mm pistol. ( trade value around $300)
A left handed Diamond bow set to 65lbs but adjustable from 7-70 set for a 29" draw. Comes with a 8" SAS Stabilizer, 12 arrows 6 standard, 6 match, 125gr auto open broadheads set to open at 65lbs, 2 arrow cases 2 bow cases a hard and soft case and a drop rest. The optic was changed in 2020 to...
Awesome little .380
Great shape and just been sitting for the last 10 yrs
Comes with what you see. 3 mags and a box of ammo and case. These are kind of rare
Trades…
G21
G20
G40
1911
Semi auto in 45acp
Or???
Send me a messege thanks
Sig 238 .380 Diane plate, fairly rare
Been in the safe for 11 years
Comes with all the sig stuff
And a flush fit sig mag
And 2 extended sig mags
Have a box of ammo as well
Trades..
G21
G20
G29
G41
Or??? Open to trades, send a private messege thanks
Very nice nice sig 238 .380 Diamond plate
Hard to find
Comes with all original stuff plus 2 sig extended sig mags and a flush fit sig mag. Have a box of ammo as well
Trades…. 1911
G21
G21sf
G20
G41
Or? Pm me for best response
Very nice hard to find pistol
Sig p238 .380
All factory stuff included
Plus two extra sig 7rd extended mags
3 mags full of ammo
And a box of blazer
Open to trades!
Please just send a messege
If you have questions, comments, offers, send a pm thanks
This is a diamond archery edge 320 by bowtech. 30 to 70 pound adjustable draw, 15 to 30 inch draw length. 5 pin sight with wisker biscuit. Fully set up for hunting. Comes with blackout soft bag, 24 arrows with various flex. (Mostly 340 spine. Check pictures for brand and spine.) Also included is...
For sale or trade. Used schecter bass guitar. Comes with a strap and soft case. Has dings and stuff but overall great shape. The acoustic guitar in the photo is not for sale.
SF warcomp is 1-2-28 556 brand new with shims $100 was previously mounted never fired
Comes with muzzle brake and shim set
Only trades I want
7.5” - 10.3” barrel aero etc rainier ballistic advantage etc Hanson series etc
.750 low profile gas block quality geiselle BCM
Adjustable .750 gas block...
Up for sale is an early 2000's luxury time capsule. A 2000 GMC Jimmy Diamond Edition. This was a special edition to commemorate the 30th anniversary of the Jimmy and included a lot of equipment off of the Envoy:
Heated power leather seats
Diamond stitching on seats and door panels
HID...
Chefs Choice Diamond Hone Professional Knife Sharpener Model 110 Trizor Edge
3-Stage 100% diamond abrasive sharpener, for edges that stay sharper longer
Advanced Bi-Level magnetic guides for easy, foolproof sharpening
One owner with very little home use. Excellent working condition with a few...
1CT round diamond engagement ring , purchased new from kay jewelers and never worn because it didn’t end up working out . Looking to trade for firearms or firearms and cash , let me know . More then welcome to take to have diamond verified . Purchased new for $1900 on sale normally sells for...