what is 5 rocks dolomite the mineral is a part of?!?!
2006-10-11 01:57:31 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Biology
Dolomite is CaMg(CO3)2, Calcium Magnesium Carbonate
MINERALS THAT BELONG TO THE DOLOMITE GROUP:
Ankerite Ca(Fe, Mg, Mn)(CO3)2
Benstonite (Ba, Sr)6(Ca, Mn)6Mg(CO3)13
Dolomite CaMg(CO3)2
Huntite CaMg3(CO3)4
Kutnohorite Ca(Mn, Mg, Fe)(CO3)2
Minrecordite CaZn(CO3)2
Norsethite BaMg(CO3)2
The borate minerals nordenskoldine and tusionite are isostructural with the Dolomite Group minerals.
2006-10-11 02:12:29 · answer #1 · answered by prakash s 3 · 0⤊ 0⤋
Dolomite is the name of both a sedimentary carbonate rock and a mineral consisting of calcium magnesium carbonate (CaMg(CO3)2) found in crystals.
Dolomite rock (also dolostone) is composed predominantly of the mineral dolomite. Limestone which is partially replaced by dolomite is referred to as dolomitic limestone, or in old U.S. geologic literature as magnesian limestone.
The mineral dolomite crystallizes in the trigonal - rhombohedral system. It forms white, gray to pink, commonly curved crystals, although it is usually massive. It has physical properties similar to those of the mineral calcite, but does not rapidly dissolve or effervesce (fizz) in dilute hydrochloric acid. The Mohs hardness is 3.5 to 4 and the specific gravity is 2.85. Refractive index values are nÏ = 1.679 - 1.681 and nε = 1.500. Crystal twinning is common. A solid solution series exists between dolomite and iron rich ankerite. Small amounts of iron in the structure give the crystals a yellow to brown tint. Manganese substitutes in the structure also up to about three percent MnO. A high manganese content gives the crystals a rosy pink color noted in the image above. A series with the manganese rich kutnohorite may exist. Lead and zinc also substitute in the structure for magnesium.
Dolomite was first described in 1791 as the rock by the French naturalist and geologist, Déodat Gratet de Dolomieu (1750-1801) for exposures in the Dolomite Alps of northern Italy.
You could get more information from the link below...
2006-10-11 02:12:02 · answer #2 · answered by catzpaw 6 · 0⤊ 0⤋
Dolomite is magnesium carbonate..
2006-10-11 02:05:55 · answer #3 · answered by Fredrick Carley 2 · 0⤊ 0⤋
Suggest that you ask this question in the "Earth Sciences & Geology" section.
2006-10-11 02:05:52 · answer #4 · answered by ursaitaliano70 7 · 0⤊ 0⤋