All About Rhodochrosite: Properties, Uses, and Locations
Rhodochrosite is a mineral with various properties such as pink, yellow, grey, and brown color variations, perfect cleavage, and a Mohs hardness of 3.5 to 4. It is used as an ore of manganese, a gemstone, and an ornamental stone. Rhodochrosite is found in locations like Argentina, Africa, Montana, Russia, and more.
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Presentation Transcript
Rhodochrosite By Isabella Giesing
Rhodochrosite Properties oColor: Pink, yellow, gray, brown oStreak: White oLuster: Vitreous to pearly oDiaphaneity: Transparent to translucent
Rhodochrosite Properties o Cleavage: Perfect, rhombohedral, in three directions o Mohs Hardness: 3.5 to 4 o Specific Gravity: 3.5 to 3.7 o Crystal System: Hexagonal o Fracture: Irregular/Uneven, Conchoidal
X-Ray Powder Diffraction Information d-spacing 3.66 2.84 2.39 2.172 2.000 1.770 1.763 Intensity (35) (100) (20) (25) (25) (30) (35)
Optical Data of Rhodochrosite Uniaxial RI Values: n = 1.814 - 1.816 n = 1.596 - 1.598 Max Birefringence: = 0.218 Surface relief: High Pleochroism: Weak
Rhodochrosite Chemical Composition o (Mn, Fe, Mg, Ca)CO3 o Impurities in mineral specimen can cause discoloration of mineral o Part of the carbonate mineral family
Vein Formation Hydrothermal Filling Deposits
Stalactites Formation
Rhodochrosite Locations Argentina Africa Montana Russia Gabon Japan Peru Colorado Romania Mexico
Rhodochrosite Uses oOre of manganese oGemstone oOrnamental stone
How much do you think this costs?
Rhodochrosite Price Ranges vary on the compositional color of the mineral Medium dark red: $204 per carat. Light pink: $241 per carat Medium pink: $344 per carat Medium red: $365 per carat Medium orangey red: $436 per carat
Fun Facts o Rhodochrosite is the mineral of Colorado o Argentina's national's gemstone o Rhodochrosite supposedly has healing powers o Very soft mineral with perfect cleavage makes the mineral very hard to cut
Works Cited https://www.jewelsforme.com/gem_and_jewelry_library/rhodochrosite https://geology.com/minerals/rhodochrosite.shtml https://www.mindat.org/min-3406.html http://www.bernardine.com/gemstones/rhodochrosite.htm https://www.minerals.net/mineral/rhodochrosite.aspx https://geology.com/minerals/rhodochrosite.shtml https://en.wikipedia.org/wiki/Rhodochrosite#Use https://www.gemsociety.org/article/rhodochrosite-jewelry-and-gemstone- information/ http://www.chem.ucla.edu/~harding/IGOC/C/crystal.html
