The demonstrable benefits of the SRS Mobile EQ technology allows our platform partners and portable device manufacturers to differentiate their mobile devices from all others on the market today, with improved audio quality and increased battery life, explained Tom Yuen, CEO for SRS Labs.
If your quartz crystals are encrusted with calcite, barite, or lime carbonates, you can try cleaning them with ordinary household vinegar and washing ammonia. You'll want to soak them for 8-12 hours in full-strength vinegar. Wash the crystals well, and then soak them for the same amount of time in washing ammonia.
Both calcite and quartz can be found as clear crystals what tests can be used to correctly identify them? You can use the hardness of the mineral to differentiate quartz from calcite. Edit