In this book the authors present new developments in quartz research Topics discussed in this compilation include the nature of paramagnetic defects in a Quartz veined quartz of the Urals QCM in the active mode densification of quartz particle beds by tapping rapid detection for pollutants and bacteria based on quartz crystal microbalance biosensors novel quartz oscillator measurement for gas composition changes detection adsorption of chemical and biological molecules based on quartz crystal microbalance QCM as sensor usefulness of quartz crystal microbalance techniques to assess in situ detergency process efficiency ultra stable quartz oscillators and gold analysis after nanoparticle adsorption on quartz reflectors and total reflection x ray fluorescence TXRF analysis