2.5 - 3.0 Muscovite and biotite mica are 2.0-2.5 and 2.5-3.0 respectively on the Mohs scale.
2.5 - 3.0
Mica is a very soft mineral, about a 1 or 2
The spelling mica is a word, a soft rock. There are no common anagrams.
Mica is non-metallic; it does not carry an electrical charge and is not malleable, or hard.
soft, malleable ones. Mica is one example
Biotite is one of the mica group of silicate minerals.
Mica
Hard
They are most likely muscovite or biotite mica.
it is hard and sometimes soft
hard
Mica schist is primarily composed of mica, whereas aventurine - note the spelling- is composed of quartz with abundant inclusions of mica. This makes for a relatively hard, tough and attractive material that can be polished into jewelry and many other items.
soft you can bend and hard you can not