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| Joined: | Thu Apr 16th, 2009 |
| Location: | Arctic, Norway |
| Posts: | 5821 |
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Try the water drop test. If the water forms drops you probably have a sapphire. If it spreads its probably mineral. I say probably because I've done this and sometimes received curious results.
I tried this trick and it worked every times...On real sapphire crystal, the drop form a clean bubble. If it spray, even not much, it's not sapphire. Offcourse: Depose a little water drop...Mineral will spray the drop in different shape: Not as much as a hard plexi but still...
This got to do with the very high density of sapphire crystal who's like the natural corodum(sapphire, ruby): 9 on Moh's hardness scale. Diamond is 10.
So the water don't find micro-cracks to spray itself in.
Offcourse, the sapphire surface have to be polished clean like it's on a watch crystal: Don't try this on a slightly cracked natural corodum stone....
I've been reading a topic about reparing lightly scratched sapphire glass yourself: Use Diamond past (2.5 microns) and
rub the scratched surface with a little piece of ragg for 2-3 minuts.
Clean it up and if the trace disappeared, finish with a 0.5 micron D.past by doing the same thing.
Protect your bezel during operation! ;)
The guy fixed his Pam like that: Instead of buying a new VERY expensive crystal...
It make sens to me: The diamond-past is apparently a compound with microscopic diamond powder. As the diamond is harder than the sapphire, it polish it and erase the tiny scars who was made accidently by "banging a door frame".
Hard steel: Specialy when it's sharp can dig it's way into sapphire as you may know...