Most people know some very basic information about minerals, crystals, and gemstones, but likely wouldn’t be sure about what ...
Minerals are typically formed when molten rock, or magma, cools, or by separating out of mineral-rich water, such as that in underground caverns. In general, mineral particles are small ...
These minerals are often particularly sensitive when exposed to ultraviolet (UV), blue light or inappropriate relative humidity. 'Many people think that because rocks are usually hard and have lasted ...
Rocks on the surface of the Earth can be worn away by the weather into interesting shapes. Rocks can be soft or hard. Soft rock is more likely to be worn away by the weather over long periods of ...
Some minerals in rocks and organic matter (e.g., wood, bones, and shells) can contain radioactive isotopes. The abundances of parent and daughter isotopes in a sample can be measured and used to ...
Rocks on the surface of the Earth can be worn away by the weather into interesting shapes. Rocks can be soft or hard. Soft rock is more likely to be worn away by the weather over long periods of ...
Some minerals in rocks and organic matter (e.g., wood, bones, and shells) can contain radioactive isotopes. The abundances of parent and daughter isotopes in a sample can be measured and used to ...