Moonstones belong to the genus Pachyphytum and the oviferumspecies. So in the botanical world, it goes by the name Pachyphytum oviferum – which is a reference to the shape of its leaves.
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Pachyphytum Oviferum
Make sure to keep your plant in a sunny place where it gets enough sunlight. Water the in-container Pachyphytum Oviferum only when you feel it soil dry to a depth of 4 inches. Avoid watering it when the soil still feels moist or else your fragile succulent will be damaged.