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Alternatively known as "Minerals, or hardness scale". Mohs is a graphical display of the Mohs hardness scale used for identifying minerals. Features i …

MetroTune is a metronome and tuning fork combined in one app. Ideal for any musician. Easy-to-use device without the hassle of carrying additional bul …

Alternatively known as "Minerals, or hardness scale".Mohs is a graphical display of the Mohs hardness scale used for identifying minerals.Features inc …

MetroTune is a metronome and tuning fork combined in one app.Ideal for any musician. Easy-to-use device without the hassle of carrying additional bulk …