Want this question answered?
yes
pyrite
yes.
yes it can
Diamond will scratch all rocks and other minerals, including itself.
Yes magnatite does and it can be scratched by a nail Jk!
Yes magnatite does and it can be scratched by a nail Jk!
I would say not likely. Most metals are rather soft in their pure form. One of the most distinguishing characteristics about metals is that they are sectile, or easily cut with a knife. Silver has a hardness (on the Mohs scale) of 3. That is probably not going to scratch many other minerals.
I only know the minerals... They are quartz and pyrite and etc.
Yes. Barite is able to scratch any other mineral, or rock composed of minerals, with an equivalent or lower Mohs hardness rating (Barite: Mohs 3-3.5).
Some minerals have varying hardness according to the direction you may scratch
The scratch table is called the Mohs Scale of Mineral Hardness and measures the hardness of minerals in relation to the known hardest (diamond) and softest (talc) minerals.