Get Moon Phases Engraved MDF Coaster And Grid online at Hanifa Crystals. Moon Phases Engraved MDF Coaster is an opaque, microcrystalline variety of Quartz with large, grainy crystals rather than the fibrous layers of Chalcedony or Agate. It occurs in nodules or as fillings in fissures and may be found the world over. Red Jasper carries a strong spiritual grounding vibration, and resonates within the lower three chakras. It creates a strong connection to the earth. Book an order today.