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Sphalerite may have also been used during the cementation process of brass in Northern China during the 12th–13th century CE (Jin Dynasty). [48] Besides brass, the zinc in sphalerite can also be used to produce certain types of bronze; bronze is dominantly copper which is alloyed with other metals such as tin, zinc, lead, nickel, iron and ...
Galena is the main ore of lead, used since ancient times, [6] since lead can be smelted from galena in an ordinary wood fire. [7] Galena typically is found in hydrothermal veins in association with sphalerite, marcasite, chalcopyrite, cerussite, anglesite, dolomite, calcite, quartz, barite, and fluorite.
Eilat stone; Epidosite; Glimmerite; Goldstone (glittering glass) Hawk's eye; Helenite (artificial glass made from volcanic ash) Iddingsite; Kimberlite; Lamproite; Lapis lazuli; Libyan desert glass; Llanite; Maw sit sit; Moldavite; Obsidian; Apache tears; Pallasite; Peridotite (also known as olivinite) Siilinjärvi carbonatite; Soapstone (also ...
An alternative origin of the name derives from an old miners' name for the zinc ore sphalerite, which they called "Black Jack". Thus, the unique blue stone mined in these caverns could easily have become known as "Blue John". [1]: 7 Another derivation comes from the Cornish miners who began working the Derbyshire lead mines in the 1740s.
Sphalerite ZnS; Chalcopyrite CuFeS 2; Pyrrhotite Fe 1–x S; Millerite NiS; Pentlandite (Fe,Ni) 9 S 8; Covellite CuS; Cinnabar HgS; Realgar AsS; Orpiment As 2 S 3; Stibnite Sb 2 S 3; Pyrite FeS 2; Marcasite FeS 2; Molybdenite MoS 2; Sulfarsenides: Cobaltite (Co,Fe)AsS; Arsenopyrite FeAsS; Gersdorffite NiAsS; Sulfosalts: Pyrargyrite Ag 3 SbS 3 ...
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Even in these uses it should be considered to be a very delicate stone. If it is used as a ring stone, the facet edges will be easily abraded, the faces will be easily scratched, and the stone might be chipped with even a slight impact. [3] It is seen as an inexpensive alternative to naturally-occurring green gemstones, such as emerald and ...
People seek Morel Mushrooms in forests, railway tracks, or fencerows in North America; the Lion’s Mane Mushroom tumble out of trees; and France’s La Cave Des Roches is a maze of 75 miles of ...
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