No. Quartz is oxide, and can be etched by BOE/BHF or HF dip. ----- Original Message ----- From: "David Casale"To: Sent: Thursday, August 27, 2009 10:01 AM Subject: Re: [mems-talk] Dipper basket/vessel 4" in diameter Just any quartz beaker should work, right? David Casale R&D Engineer www.maxlevy.com Drexel University Kim Group BAST Lab