礦物資料庫與水晶療法礦物Keiviite-(Y)David Hospital·CC BY-SA 4.0·WikimediaKeiviite-(Y)Y2Si2O7Monoclino heart IMA approved成分Composizione (% in peso)YOSiYYttrium51.4%OOxygen32.4%SiSilicon16.2%次要脈輪third eye