Rhodochrosite

Rhodochrosite ndi mchere wa manganese carbonate wokhala ndi mankhwala opangidwa ndi MnCO3. M'mawonekedwe ake oyera (kawirikawiri), nthawi zambiri amakhala amtundu wofiyira, [5] koma amathanso kukhala apinki mpaka bulauni. Imakhala yoyera, [6] ndipo kulimba kwake kwa Mohs kumasiyana pakati pa 3.5 ndi 4.5. Mphamvu yokoka yake ili pakati pa 3.45 ndi 3.6. The crystal system of rhodochrosite ndi trigonal, ndi kapangidwe ndi cleavage mu carbonate rhombohedral system. Ma ion carbonate (CO2-

3) amakonzedwa mu dongosolo la katatu, ndipo ma manganese ions (Mn2 +) azunguliridwa ndi ma ion 6 a oxygen mu dongosolo la octahedral. Makona atatu a MnO6 octahedra ndi CO3 amalumikizidwa pamodzi kuti apange mawonekedwe amitundu itatu. Crystal twinning nthawi zambiri amapezeka. Ikhoza kusokonezedwa ndi manganese silicate rhodonite, koma ndi yofewa kwambiri. Rhodochrosite imapangidwa ndi oxidation ya manganese ore, ndipo imapezeka ku South Africa, China, ndi America. Ndi chimodzi mwa zizindikiro za dziko la Argentina ndi dziko la Colorado.

Rhodochrosite imapanga mndandanda wathunthu wazitsulo zolimba ndi iron carbonate (siderite). Calcium (komanso magnesium ndi zinki, pang'ono) nthawi zambiri amalowa m'malo mwa manganese mu kapangidwe kake, zomwe zimatsogolera ku mithunzi yowala yofiira ndi pinki, kutengera kuchuluka kwa m'malo. Ichi ndichifukwa chake mtundu wa rose wa rhodochrosite.