| General Information | 
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| Chemical Formula | Michael O’Donoghue, Gems, Sixth Edition (2006) More from other references | 
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| Physical Properties of Rhodochrosite | 
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| Mohs Hardness | 4Walter Schumann, Gemstones of the world (2001) More from other references | 
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| Specific Gravity | 3.45 to 3.70Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references | 
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| Tenacity | BrittleArthur Thomas, Gemstones (2009) | 
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| Cleavage Quality | PerfectHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references | 
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| Fracture | Uneven,ConchoidalWalter Schumann, Gemstones of the world (2001) | 
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| Optical Properties of Rhodochrosite | 
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| Refractive Index | 1.578 to 1.820Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references | 
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| Optical Character | Uniaxial/-Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references | 
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| Birefringence | 0.208 to 0.220Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references | 
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| Pleochroism | Distinct: pinkish-red - colorless/light pinkHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references | 
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| Dispersion | 0.015Walter Schumann, Gemstones of the world (2001) More from other references | 
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| Colour | 
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| Colour (General) | Pinkish to redHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references | 
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| Causes of Colour | Pink to red, Mn2+ in octahedral coordination, with minor Fe2+ Mn3+ in octahedral coordinationW. William Hanneman, Pragmatic Spectroscopy For Gemologists (2011) | 
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| Transparency | TransparentHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references | 
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| Lustre | Vitreous,ResinousArthur Thomas, Gemstones (2009) | 
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| Fluorescence & other light emissions | 
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| Fluorescence (General) | Under both forms of UV there is a pink response from the mineral as a whole though individual specimens may not show much.Michael O’Donoghue, Gems, Sixth Edition (2006) | 
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| Fluorescence (Long-Wave UV) | Inert to yellowHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) | 
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| Crystallography of Rhodochrosite | 
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| Crystal System | TrigonalHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references | 
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| Habit | Commonly aggregates with botryoidal formsUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) More from other references | 
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| Geological Environment | 
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| Where found: | Rhodochrosite occurs as a primary mineral in low- to moderate-temperature hydrothermal veins, also in metamorphic deposits and in carbonatites.Michael O’Donoghue, Gems, Sixth Edition (2006) | 
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| Further Information | 
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| Mineral information: | Rhodochrosite information at mindat.org | 
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| Significant Gem Localities | 
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| | |  |  | Argentina |   |  |  | Saadi and Grasso (1992) |  |  | Gems, Sixth Edition, Michael O’Donoghue, 2006, p. 443 |  |  |  | China |   |  |  |  |  |  |  | Japan |   |  |  | Gems, Sixth Edition, Michael O’Donoghue, 2006, p. 443 |  |  |  | Myanmar |   |  |  | Ted Themelis (2008) Gems & mines of Mogok |  |  | Ted Themelis (2008) Gems & mines of Mogok |  |  |  | Peru |   |  |  |  |  |  |  |  |  | Gems, Sixth Edition, Michael O’Donoghue, 2006, p. 443 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | South Africa |   |  | John Taolo Gaetsewe District Municipality
 Joe Morolong Local Municipality
 | Gems, Sixth Edition, Michael O’Donoghue, 2006, p. 443 |  |  | Gems, Sixth Edition, Michael O’Donoghue, 2006, p. 443 |  |  | Gems, Sixth Edition, Michael O’Donoghue, 2006, p. 443 |  |  |  | USA |   |  |  | Gems, Sixth Edition, Michael O’Donoghue, 2006, p. 443 | 
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