Our Soapstones on the Moh’s scale
DARK JULIA: 77 x 116-125 | Mohs: 3-4
(Ocean hued paired w/spherical veining)
MARIANA/SANTA RITA: 70 x 112 | Mohs: 3
(Silky smooth grey w/fine crisp white veining)
PA ORIGINAL: 75 x 120 + 76 x 127| Mohs: 4-5
(Velvet aqua grey w/whimsical veining)
HARDNESS
Hardness is determined by the ability of one mineral to scratch another. Federick Mohs, a German mineralogist, produced a hardness scale, using a set of ten standard minerals. The scale arranges the minerals in order of increasing hardness. The higher the number, the harder the mineral. Talc is a 1 meaning its the softest and diamond is a 10 being the hardest.
TEST
You can roughly determine the mineral hardness by using the followings, steps/tools:
A fingernail has a hardness ranging from 2 to 2.5
A penny is a little harder than 3
Glass ranges from 5.5 to 6
A Knife blade is generally in the range of 5 to 6.5