Slate is found in the pool tables used in most every bar or pub. It's pretty common and easy to find.
Aids is not a bacteria. Aids is not found on hands (or that would be extremely rare).
Aquamarine is a semi-precious stone that is considered a common gemstone.
Obsidian (volcanic glass) is unstable and it de-vitrifies (crystallizes) with time, it is also only produced from viscous, acidic lavas. You would therefore look for it in recently produced lavas in continental volcanoes. Thus while obsidian is not uncommon, it does not last very long geologically. Where it is found it is found in large amounts.
Common
No, it is one of the most common colours of quartz, which is not a rare stone.
Cattails would only be found in areas in the desert with permanent water. They are not common in the desert because such areas of water are rare.
Wolf spiders are not considered rare, as they are actually quite common and can be found in various habitats around the world. They are known for their hunting abilities and are often seen in grassy areas or near buildings.
it is common as it can be found in milk it is common as it can be found in milk
Spotted Skunks are not at all rare; they are very common in the areas that they inhabit.
They are not common, but they are also not rare. They are more of an uncommon breed in certain areas.
white is common red is rare
Astatine is an extremely rare chemical element, not found in common materials.
Mercury is an extremely rare element in the Earth's crust. However, its ores (mainly the red colored ore called "cinnabar") are extremely concentrated as it does not react to form may minerals. It is found in young mountain areas where deep seated rocks have been brought to the surface and deposits are found in Peru, Mexico, The US, Spain, Italy, China, Kyrgyzstan and Slovenia.
Very common - sodium is found in table salt, for instance.
it is a animal . these species found in particular areas . these species are very rare.
They can be found in the volcano in the two areas near the spawn.
it is a animal . these species found in particular areas . these species are very rare.