X1011379912-00022-05803</DOCNO> Moh's Hardness Scale - Handy Reference Guide The Very Highest Quality Information... Moh's Hardness Scale Moh Mineral Brinell 10 Diamond 9 Corundum 667 8 Topaz 304 7 Quartz 178 6 Feldspar 147 5 Apatite 137 4 Fluorspar 64 3 Calcite 53 2 Gypsum 12 1 Talc 3 Moh's Scale Is Still Used in Mineralogy & Gemmology Crude but Practical In 1822, Friedrich Moh, a German mineralogist devised a crude but practical method of comparing hardness or scratch resistance of minerals.
(a German mineralogist; devised; a crude but practical method of comparing hardness or scratch resistance of minerals) Context(a German mineralogist devised,List([383, 412))):(Moh's Scale; Is; T:Still; Used in Mineralogy & Gemmology Crude but Practical In 1822) (The Very Highest Quality Information; [is] Guide [of]; Handy Reference) (Friedrich Moh; [is] a mineralogist [from]; Germany)
a German mineralogist devised,List([383, 412))
a German mineralogist Moh's Scale The Very Highest Quality Information Friedrich Moh
devised Is [is] Guide [of] [is] a mineralogist [from]
a crude but practical method of comparing hardness or scratch resistance of minerals
T:Still Used in Mineralogy & Gemmology Crude but Practical In 1822
Handy Reference
Germany