topaz — Mohs 8, quartz — Mohs 7, orthoclase — Mohs 6, plagioclase — Mohs 6–6.5, mica — Mohs 2–4). Despite its lack of precision, the Mohs scale is relevant...

German chemist and mineralogist. He was the creator of the Mohs scale of mineral hardness. Mohs also introduced a classification of the crystal forms in...

Mohs or MoHS can refer to: Friedrich Mohs, a 19th-century German geologist who developed: Mohs scale, a scale used in materials science to describe hardness...

materials by scratch tests was by mineralogist Friedrich Mohs in 1812 (see Mohs scale). The Mohs scale is based on relative scratch hardness of different materials;...

rainbow colors, similar to opal, with a measurement of hardness on the Mohs scale of between 5 and 7 which reduces the occurrence of scratching when polished...

Because of corundum's hardness (pure corundum is defined to have 9.0 on the Mohs scale), it can scratch almost all other minerals. It is commonly used as an...

spar is a silky brown variety of corundum. It has a hardness of 9 on the Mohs scale. Yogo sapphire "Adamantine Spar". Archived from the original on 18 October...

chemical formula is Be(Mg, Fe, Zn)2Al6O12. Its hardness is 8 to 8.5 on the Mohs scale. Due to its rarity, the mineral can sell for roughly USD$35,000 per carat...

crystals are flexible and slightly sectile with a hardness of 2-2.5 on the Mohs scale. Fuchsite fluoresces lime green under long wave UV light. Fuchsite's radioactivity...

particularly as a component of limestone. Calcite defines hardness 3 on the Mohs scale of mineral hardness, based on scratch hardness comparison. Large calcite...