I am sodium because I am a metal and metals are heavy and i am also very expensive.
first, you should weigh it to see if it is heavy or not. if not, it is most likely pure and expensive. some metals and/or minerals are heavy and you may need to weigh it with the metal and/or mineral it was originally made from. if it is lighter than it, then it is not pure and less expensive. you could use this method first or you could use the one stated above.
Rhenium is a chemical element, metal, rare, very expensive.
Finding a natural pearl inside of an oyster in the wild is very rare. You can purchase small, natural pearls, but they are very expensive because they are so rare. In the wild, only about 1 in 10,000 oysters have a pearl. The majority of pearls are farmed, and these are very common.
Heavy metals tolerant plants are rare in areas contaminated with heavy metals because such environments often create extreme stress conditions that challenge plant survival and growth. These plants must possess specific adaptations, such as mechanisms for sequestering or detoxifying metals, which can take time to evolve. Additionally, the high toxicity of heavy metals can limit biodiversity, reducing the number of species that can thrive in these areas. Consequently, the combination of environmental stressors and evolutionary pressures results in a scarcity of heavy metals tolerant plant species.
Yes, blue diamonds are generally more expensive than white, pink, or black diamonds. This is due to their rarity, with high-quality blue diamonds being quite scarce compared to other colors. The unique coloring of blue diamonds adds to their allure and value in the market.
Rare items are expensive because people need to spend their rare items, too.
Not all mahogany is expensive. There are many types. The expensive type is very rare. Cuban or W. Indian is rare.
it is most DEFINITELY rare, because it is VERY expensive
Curium is extremely dangerous and expensive.
maybe it is breakable or rare. maybe it is breakable or rare.
It is rare, beautiful and doesn't degrade!
Relatively rare, and rather expensive.
Amontillado is not rare.
No, they are not rare and found in abundance.
It is not rare, just expensive. But, you can get small silver coins for as little as $2.
Rhodium is pretty rare and very expensive. More rare than platinum.
Because they are so rare.