Sapphire is the single crystal form of the compound aluminum oxide and it is the second hardest material in nature after diamond. Sapphire offers optical transparency, physical strength, resistance to impact, abrasion, and corrosion, high pressure and temperature durability, bio-compatibility and is able to be shaped into nearly any shape for a variety of applications. I’m Christina Collins with CRWE Newswire -Today’s company highlight is Rubicon Technology Incorporated trading with the symbol RBCN - Rubicon Technology is an advanced electronic materials provider that is engaged in developing, manufacturing and selling monocrystalline sapphire and other crystalline products for light-emitting diodes (LEDs), radio frequency integrated circuits (RFICs), blue laser diodes, optoelectronics and other optical applications. The Company applies its proprietary crystal growth technology to produce very high-quality sapphire in a form that allows for volume production of various sizes and orientations of substrates and windows. Rubicon Technology recently reported that it is having another solid quarter and estimates that revenue in the second quarter 2011 should come in at the high end of the $40 million and $43 million range of its previously provided guidance. Pre-tax earnings are also expected to be at the high end of the company’s previous estimates. For more information about Rubicon Technology Incorporated, symbol RBCN, visit www.rubicon-es2.com. I’m Christina Collins with CRWE Newswire ********************************* THIS IS NOT A RECOMMENDATION TO BUY OR SELL ANY SECURITY! Disclaimer: Never invest in any stock featured on our site or emails unless you can afford to lose your entire investment. crwenewswire.com publisher and its affiliates and contractors are not registered investment advisers or broker/dealers.Our disclaimer (Read more at http://www.crwenewswire.com/disclaimer) is to be read and fully understood before using our site, reading our newsletter or joining our email list. Release of Liability: Through use of this website viewing or using, you agree to hold crwenewswire.com report and Crown Equity Holdings Inc. CRWE, its operators, shareholders, employees and/or contractors harmless and to completely release them from any and all liability due to any and all loss (monetary or otherwise), damages (monetary or otherwise) that you may occur. Rule 17B requires disclosure of payment for investor relations. Crown Equity Holdings Inc. (CRWE.OB) is a newswire as well as an IR and PR firm. Crown Equity Holdings Inc. (CRWE.OB), in some cases, provides media advertising and public awareness for both public and private companies, as well as disseminating news. As such, in some cases, when Crown Equity Holdings Inc. (CRWE.OB) advertises for a particular client, Crown Equity Holdings Inc. (CRWE.OB) charges an advertising fee which it must disclose under 17B. The fee may be in cash, in free trading stock or in restricted stock. Crown Equity Holdings Inc. (CRWE.OB), if paid in stock, can and may sell those securities during the advertising period.