CHRYSOCOLLA GEMMY Crystal Mineral Specimen Morenci Mine ARIZONA Copper Ore for Sale

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CHRYSOCOLLA GEMMY Crystal Mineral Specimen Morenci Mine ARIZONA Copper Ore For Sale

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CHRYSOCOLLA GEMMY Crystal Mineral Specimen Morenci Mine ARIZONA Copper Ore:
$7.99

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This specimen weighs 5.56 grams. It measures 22 mm x 18 mm x 16 mm.I offer a shipping discount for customers who combine their payments for multiple purchases into one payment!
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and I will buy back the item for your full purchase price.Hi there. I am selling this beautiful chrysocolla mineral specimen. This specimen is from Morenci Mine, Arizona. If you have any questions, please do not hesitate to ask me. Thanks so much for shopping at my store and have a great day!

The following is information about this from history
ToolsFrom Wikipedia, the free encyclopediaChrysocolla
Chrysocolla specimen from Ray mine, in the Scott Mountain area of Mineral Creek District, Pinal County, Arizona, USGeneralCategory Phyllosilicate minerals, mineraloidsFormula(repeating unit) Cu2 − xAlx(H2Si2O5)(OH)4·nH2O (x < 1)[1]IMA symbol Ccl[2]Strunz classification 9.ED.20Crystal system OrthorhombicUnknown space groupUnit cell a = 5.7 Å, b = 8.9 Å,c = 6.7 Å; Z = 1IdentificationColor Blue, cyan (blue-green), green, dark blue to black, brown, rarely yellowCrystal habit Massive, nodular, botryoidalCleavage noneFracture Irregular/uneven, sub-conchoidalTenacity Brittle to sectileMohs scale hardness 2.5–3.5 (7 for chrysocolla chalcedony, high-silica content)Luster Vitreous to dullStreak White to a blue-green colorDiaphaneity Translucent to opaqueSpecific gravity 1.9–2.4Optical properties Biaxial (−)Refractive index nα = 1.575–1.585 nβ = 1.597 nγ = 1.598–1.635Birefringence δ = 0.023–0.050References [3][4][1][5]Chrysocolla (/ˌkrɪsəˈkɒlə/ KRIS-ə-KOL-ə) is a hydrous copper phyllosilicate mineral and mineraloid with the formula Cu2 – xAlx(H2Si2O5)(OH)4⋅nH2O (x < 1)[1] or (Cu, Al)2H2Si2O5(OH)4⋅nH2O).[4]
The structure of the mineral has been questioned, as a 2006 spectrographic study suggest material identified as chrysocolla may be a mixture of the copper hydroxide spertiniite and chalcedony.[6]
HistoryThe name chrysocolla comes from the Ancient Greek χρυσός (khrusós) and κολλα (kolla), meaning \"gold\" and \"glue\" respectively,[7] in allusion to the name of the material used to solder gold. The word was first used by Theophrastus in 315 BC.
GeologyChrysocolla has a cyan (blue-green) color and is a minor ore of copper, having a hardness of 2.5 to 7.0. It is of secondary origin and forms in the oxidation zones of copper ore bodies. Associated minerals are quartz, limonite, azurite, malachite, cuprite, and other secondary copper minerals. It is typically found as botryoidal or rounded masses and crusts, or vein fillings.
A 2006 study has produced evidence that chrysocolla may be a microscopic mixture of the copper hydroxide mineral spertiniite, amorphous silica and water.[6][1]
JewelryDue to being somewhat more common than turquoise, its wide availability, and vivid, beautiful blue and blue-green colors, chrysocolla has been popular for use as a gemstone for carvings and ornamental use since antiquity. It is often used in silversmithing and goldsmithing in place of turquoise and is relatively easy to work and shape. Chrysocolla exhibits a wide range of Mohs hardness ranging from 2 through 7, which is dependent on the amount of silica incorporated into the stone when it is forming. Generally, dark navy blue chrysocolla is too soft to be used in jewelry, while cyan, green, and blue-green chrysocolla can have a hardness approaching 6, similar to turquoise. Chrysocolla chalcedony is a heavily silicified form of chrysocolla that forms in quartz deposits and can be very hard and approach a hardness of 7