Mineraller ve özellikleri Kalsit General Calcite Information Chemical Formula: CaCO3 Composition: Molecular Weight = 100.09 gm Calcium 40.04 % Ca 56.03 % CaO Carbon 12.00 % C 43.97 % CO 2 Oxygen 47.96 % O ______ ______ 100.00 % 100.00 % = TOTAL OXIDE Empirical Formula: Ca(CO3) Environment: Found in sedimentary, igneous, and metamorphic rocks. IMA Status: Valid Species (Pre-IMA) Locality: Common world wide. Link to MinDat.org Location Data. Name Origin: From the Latin, calx, meaning lime. Synonym: Glendonite - pseudomorph ICSD 73446 Manganocalcite - variety Nicols PDF 5-586 Travertine Calcite Crystallography Axial Ratios: a:c = 1:3.41992 Cell Dimensions: a = 4.989, c = 17.062, Z = 6; V = 367.78 Den(Calc)= 2.71 Crystal System: Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: R 3c X Ray Diffraction: By Intensity(I/I o): 3.035(1), 2.095(0.18), 2.285(0.18), Forms: Mouse Dbl Clk - Start-Stop Rotation RMB - Cycle Display Modes Drag1 - Manipulate Crystal Drag2 - Resize Keyboard S - Stereo I - Indicies - Start-Stop Rotation F - Fit to Screen M - Menu Help on Above Forms: [ 2 1 1] [ 0 1 1] Warning: this large pop-up is very compute intensive and may not work well with some computers. Physical Properties of Calcite Cleavage: [1011] Perfect, [1011] Perfect, [1011] Perfect Color: Colorless, White, Pink, Yellow, Brown. Density: 2.71 Diaphaniety: Transparent to translucent to opaque Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments. Habits: Crystalline - Coarse - Occurs as well-formed coarse sized crystals., Stalactitic - Shaped like pendant columns as stalactites or stalagmites (e.g. calcite)., Massive - Uniformly indis tinguishable crystals forming large mass Hardness: 3 - Calcite Luminescence: Fluorescent. Luster: Vitreous (Glassy) Streak: white Optical Properties of Calcite Gladstone-Dale: CI meas= 0.004 (Superior) - where the CI = (1- KPDmeas/KC) CI calc= 0.004 (Superior) - where the CI = (1- KPDcalc/KC) KPDcalc= 0.2096,KPDmeas= 0.2096,KC= 0.2104 Optical Data: Uniaxial (-), e=1.486, w=1.64-1.66, bire=0.1540- 0.1740. Calcite Classification Dana Class: 14.1.1.1 (14)Anhydrous Carbonates (14.1)with Simple Formula A+ CO3 (14.1.1)Calcite Group (Trigonal: R3¯c) 14.1.1.1 Calcite CaCO3 R 3c 3 2/m 14.1.1.2 Magnesite MgCO3 R 3c 3 2/m 14.1.1.3 Siderite FeCO3 R 3c 3 2/m 14.1.1.4 Rhodochrosite MnCO3 R 3c 3 2/m 14.1.1.5 Sphaerocobaltite CoCO3 R 3c 3 2/m 14.1.1.6 Smithsonite ZnCO3 R 3c 3 2/m 14.1.1.7 Otavite CdCO3 R 3c 3 2/m 14.1.1.8 Gaspeite (Ni,Mg,Fe)CO3 R 3c 3 2/m Strunz Class: V/B.02-20 V - Nitrates, Carbonates and Borates V/B - Waterfree carbonates [CO3]2- without unfamiliar anions V/B.02 - Calcite group V/B.02-10 Vaterite CaCO3 P 6 3/mmc 6/m 2/m 2/m V/B.02-20 Calcite CaCO3 R 3c 3 2/m V/B.02-30 Magnesite MgCO3 R 3c 3 2/m V/B.02-40 Siderite FeCO3 R 3c 3 2/m V/B.02-50 Rhodochrosite MnCO3 R 3c 3 2/m V/B.02-60 Smithsonite ZnCO3 R 3c 3 2/m V/B.02-70 Sphaerocobaltite CoCO3 R 3c 3 2/m V/B.02-80 Gaspeite (Ni,Mg,Fe)CO3 R 3c 3 2/m V/B.02-90 Otavite CdCO3 R 3c 3 2/m