New Customer Offer. T&C’s Apply. 18+. PLUS 100 Free Spins. 20 free spins in Quartz SiO2 for 5 days in a row after you have used your bonus. Min deposit: 10 €/$. Max Bet: 5€/$. All deposit bonuses are valid for 30 days. Max cashout: 10x deposit. Cashable. Free spins are not available to players from Your country, Belgium. Bahamas, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Iceland, Poland, Puerto Rico, Romania, Slovenia, Sweden, Germany, Greece.