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Rockhounding and Mineral Collecting
Ask questions about collecting rocks and minerals and their values here.
562 Questions
Famous site in Arizona known for its colorful rocks startes with g?
The Grand Canyon, but perhaps better known for its color is the Painted Desert.
Pearls are relatively soft compared to many gemstones, scoring around 2.5 to 4.5 on the Mohs scale of mineral hardness. This means they can be easily scratched or damaged by harder materials. While they have a beautiful luster and are valued for their aesthetic qualities, they require careful handling and storage to maintain their appearance. Regular cleaning with gentle methods is recommended to preserve their surface.
What is the florentine diamond?
The Florentine Diamond is a lost Diamond that originally came from India. It was light yellow with a slight green tinge and weighing 137.27 carats. The Diamond was stolen some time after 1918.
Yes, if it is sterling Silver. though to stabilize the silver Nickel is added.
Mine run well have a lot of mineral & other metals mix in.
Idaho their is a mine that 97.5% silver came out of. it had arsenic.
Polymorphs are two minerals that have the same?
Polymorphs are two minerals that have the same chemical composition, but different crystal structures. For example, pyrite is isometric and marcasite is orthorhombic, but both are composed of iron sulfide. Similarly, diamond and graphite are both composed of carbon, but the former is isometric and the latter is hexagonal.
The elasticity of rocks refers to their ability to deform and return to their original shape when subjected to stress. This property is crucial in understanding how rocks respond to forces such as tectonic movements or pressure changes. Elasticity is quantified by parameters such as Young's modulus, which measures the stiffness of the material. Generally, the elasticity of rocks varies with their composition, temperature, and the presence of fluids within their pores.
Gems are found in lots of places, all over the world. They can be gleaned from mines deep underground, or alluvial gravels... etc. What is where is determined by geology. A more specific question will get a more specific answer.
Glass has hardness of about 5.5 which minerals will scratch it?
feldspar, quartz, topaz, corundum, diamond....
Diamond will diffidently scratch glass its also made to cut glass if you get tech with it.
(alyssamc6)
Sedimentary rocks are formed from the accumulation and consolidation of sediments, which can include fragments of other rocks, minerals, and organic materials. These sediments are typically deposited in layers over time, often in bodies of water or on land surfaces. Common examples of sedimentary rocks include sandstone, limestone, and shale. They often contain fossils and provide valuable information about Earth's history and past environments.
Some low grade nephrite jade is magnetic due to iron or mica inclusions.
What are some of West Virginia's minerals?
West Virginia's most significant natural resource is coal. West Virginia also has deposits of natural gas, stone, lime, and gravel.
Are rocks formed from molted rocks igneous rock?
Yes, igneous rocks are formed from molten rock, which can either be magma (when below the Earth's surface) or lava (when it erupts onto the surface). When magma cools and solidifies underground, it forms intrusive igneous rocks, such as granite. Conversely, when lava cools and solidifies on the surface, it creates extrusive igneous rocks, like basalt. Thus, both types of igneous rocks originate from molten rock.
Where is the world's largest tin deposit?
As judged by? Historic production, or current production? Size in square meters or yearly tonnage? Alluvial, or pegmatite? It's debatable, but the answer you seek is probably Indonesia, Brazil, or Namibia.
China, according to 2011 stats from the USGS, is currently by far the largest tin producer, with the largest reserves.
What could you conclude if there was the same fossil in two places?
Finding the same species of fossil in two different places would lead to the conclusion that conditions were similar at both places when the fossils were alive.
Capite is Italian for "to understand/understood"
In North America it has morphed into capishe or capiche. It means the same thing.
It is spelled capisce.
Pure gold has a hardness of about 2.5 on the Moh's Scale, so it's safe to say that the vast majority of rocks could not be scratched by it. Gypsum and talc are a couple of very, very soft rocks that could be scratched by gold.
There are many types of rock but this one would either be
Sedimantary
Igneous
Metamorphic
