Цитата:
Сообщение от Talarien
Помоему как раз наоборот, сапфир гораздо легче расколоть чем минералку. Мне кажется что для дайверов хардлекс более оправдан.
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Вот нашел ссылку -
http://www.rayotek.com/techincal_inf...s_sapphire.htm
"...The high modulus of elasticity and high tensile strength make it
extremely wear, abrasion and
impact resistant..."
И еще -
http://en.wikipedia.org/wiki/Sapphire
"Sapphire is not only highly transparent to wavelengths of light between 170 nm (UV) and 5300 nm (IR) (the human eye can discern wavelengths from about 380 nm to 750 nm[33]), but it is also
five times stronger than glass and ranks a 9 on the Mohs Scale, and
much tougher than tempered glass, although not as much as synthetic stabilized zirconium oxide (such as yttria-stabilized zirconia)."
