(1) The iron minerals hematite and magnetite have high densities be-cause of the high atomic weight of iron.

(2) Reniform, mammillated, botryoidal, dendrite, hematite.

(3) These are sold as a set pressed hematite metal magnets.

(4) Low - grade hematite, acid, acid and sodium silicate were used to prepare poly - silicic - ferric chloride sulfate ( PSFCS ).

(5) Oolitic hematite is considered as one of the most refractory ore type.

(6) Mineral process of hematite in the early time often adopted gravity separation, and it mainly included jig, centrifugal separator, spiral chute, spiral concentrator, shaking table and so on.

(7) It'sense d a min eral called hematite that offen forms under wet conditions.

(8) The interaction between the ternary system of kaolin, hematite and sodium oleate was studied in some detail using diffused reflection differential infrared spectroscopy.

(9) Factors influencing the electrical coagulation process of hematite and quartz are described.

(10) When preparing the fluxed magnesium hematite pellets with the fuels, the intensity of roasted pellets was greatly improved with the coke ratio of less than 1.5% and pellet alkalinity at 0.9.

(11) Pitchblende is the only primary uranium mineral, which is associated with quartz, fluorite, hematite and pyrite.

(12) This results have been verified by the tests of same procedure for Sijiayin hematite ore.

(13) Black calfskin leather bracelet with Jet , Jet Mat and Jet Hematite Crystal Mesh ; faceted ruthenium - plated buckle.

(14) The main mineral is askanite with an average content of 72. 85 percent, followed by quartz, christobalite and little rock salt and hematite.

(15) The work has researched in adsorption and desorption of iodine and technetium on brass ore, lead glance, rare-earth hematite, antimony glance, molybdenite and iron pyrites and so on.

(16) The Lujiang meteorite, a chondrite whose petrochemical type is LL6, contains the following opaque minerals: kamacite, taenite, disordered taenite, troilite, chromite, hematite, ilmenite.

(17) Based on a brief analysis of the genesis of hematite, the authors hold that hematite in red granite was mostly produced under the condition of high oxygen fugacity.

(18) The analysis of the iron bearing mineral compositions indicates that the major iron bearing minerals in the rocks are magnetite, maghemite, hematite, pyrite and siderite.

(19) The study shows that from the bottom to the top of laterite weathering crust profile, illite and kaolin decrease, gibbsite, goethite and hematite increase.

(20) The domestic ores are fine magnetite concentrate, the imported ores mainly are hematite sinter fines.

(21) Our study demonstrated that formation of gold deposits in greenstone belt and gold-bearing dark rock series, and hematite containing big gold grain gold might be controlled by mineral magnetism.

(22) Main metallic minerals in the manganese-silver concentrate were psilomelane, pyrolusite , pyrite, limonite, and a few arsenopyrite, hematite and sphalerite.

(23) And as Squyres had wondered, shavings of the ratted rock in the crater were indeed brick-red, typical of hematite when it is pulverized.

(24) Iron ores of greatest economic interest contain magnetite and hematite.

(25) For two Yuan samples the amount of magnetite in pigments is nearly similar to the amount of hematite, the decorative pattern of which is of brownish red color.

(26) Besides that resource, the company has the potential for 800 million metric tons of hematite iron ore.

(27) But the mineral phase of part of Yuan dynasty's overglaze color is mainly hematite, the decorative pattern of which is of deep red color.

(28) At pegmatite contacts the composition changes to chalcopyrite, millerite, pyrite, and accompanied by magnetite and hematite.

(29) Ruthenium - plated cuff with Jet, Jet Mat and Jet Hematite Crystal Mesh and black, embossed calfskin leather.

(30) Black calfskin leather bracelet with Jet , Jet Mat and Jet Hematite Crystal faceted ruthenium - plated buckle.

(31) For sinter with 25% and 50% MAC fines the iron oxides mainly consisted of hematite and magnetite, the bonding phase were mainly dicalcium silicate, glassiness , and a few amount of calcium ferrite.

(32) The main metal minerals include limonite, hematite and jarosite, and the gangue minerals are dominated by quartz, feldspar, sericite and clay minerals.

(33) As to high basicity sinter, the influence of the reduction disappearance of calcium ferrite and hematite on sinter strength is twice higher than the phase transition of calcium orthosilicate.

(34) Under weathering carbonates, such as siderite are usually turned into limonite which finally occur as hematite in the Weathering crusts.

(35) The ruthenium - plating highlights the sheen of Jet Hematite, Black Diamond, Silver Shade and clear crystals.

(36) The selective depression of ammonium fluorosilicate on aegirite, an iron-containing silicate gangue mineral, in hematite flotation using sodium oleate collector was investigated.

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(37) In this paper, with the flotation research on hematite in Kazakhstan, the flotation technology of high magnetic-reverse flotation for micronization embed hematite is finally developed.

(38) The addition of hematite also has significant influence on the activity of the heterotrophic microbes.

(39) Prismatic crystals of Natrolite on Analcime, forming an interesting cluster, Together with Hematite included Thomsonite.

(40) The settlingout minerals are hematite, goethite, quartz, silicate and carbonate at the bottom of the ocean.

(41) Hematite was successfully removed from kaolinite by shear flocculation sodium oleate was used.

(42) The results indicate that the jade mainly consists of illite and a small quantity of feldspar, quartz, hematite, siderite and rutile, which is argillaceous sedimentary rock.

(43) A study of red granite reveals that the color - forming mineral in red granite is hematite.

(44) At pegmatite contacts the composition changes to chalcopyrite, millerite, pyrite, and violarite accompanied by magnetite and hematite.

(45) It'sense d a mineral called hematite that forms under wet conditions.

(46) The depression effects of 5 depressants on ilmenorutile, hematite and fluorite are investigated.

(47) Glauconite, hematite - limonite and some chlorite are formed in syndiagenesis.

(48) To separate hematite, supposed hematite, specularite, limonite, siderite, manganese ore, chromite and so on.

(49) The influence of carbon on the process of firing hematite pellet containing solid fuel is investigated.

(50) It'sensed a mineral called hematite that often forms under wet conditions.

(51) For processing fine, feebly magnetic minerals, such as hematite, limonite, ilmenite, wolframite, tantalumniobium, red sludge and etc.

(52) Fully faceted clear crystal dromedary with eyes in Jet Hematite crystal.