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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of the Mineralogical Society of Korea
Journal Basic Information
Journal DOI :
The Mineralogical Society of Korea
Editor in Chief :
Volume & Issues
Volume 19, Issue 4 - Dec 2006
Volume 19, Issue 3 - Sep 2006
Volume 19, Issue 2 - Jun 2006
Volume 19, Issue 1 - Mar 2006
Selecting the target year
High Purification Characteristics of Quartz with Physical Separation Method
Hyun Jong-Yeong ; Jeong Soo-Bok ; Chae Young-Bae ;
Journal of the Mineralogical Society of Korea, volume 19, issue 1, 2006, Pages 1~5
In this study, we have investigated the purification characteristics of quartz which size was 0.1mm to 0.3 mm by using physical separation techniques. The A and B samples which contained 95,864 mg/kg and 4,568 mg/kg of impurities were reduced upto 126 mg/kg and 174 mg/kg of impurities, respectively. So, removal ratios of the total impurities were about 97.85 wt.% and 96.19 wt.%, individually. At that time, the yields of the purified quartz (over 99.98 wt.%
) were 79.05 wt.% and 75.43 wt.% by using purification process including magnetic separation, gravity separation and scrubbing process. The most benefit in purification process of both different raw materials for iron element can be achieved by magnetic separation. Also, gravity separation is extremely successful for reducing aluminium element.
Synthesis of P-type Zeolite Using Melting Slag from Municipal Incineration Ash
Lee Sung-Ki ; Jang Young-Nam ; Chae Soo-Chun ; Ryu Kyoung-Won ; Bae In-Kook ;
Journal of the Mineralogical Society of Korea, volume 19, issue 1, 2006, Pages 7~14
Melting slag generated from the lots of municipal incineration ash, which causes the one of big urban problems in modern industrial society, was used as starting material for the hydrothermal synthesis of zeolite. P-type zeolite has been successfully synthesized by the combined process of both 'hydrogelation' and 'clay conversion' method. Commercial sodium silicate was used as Si source, and
was prepared by the reaction in a
molar ratio of 1.2. The optimum conditions for zeolite synthesis was found to be the
ratio in the 3.2 and 4.2 range, the
ratio in the 70.7 and 80.0 range, and more than 15-hour reaction time at
, In the synthesized zeolite, inhomogeneous melting slag particles were disappeared and homogeneous P-type zeolite crystal was grown. The cation exchange capacity of the synthesized zeolite was determined to be approx. 240 cmol/kg.
Synthesis and Rietveld Structure Refinement of Mn-Tourmalines (Tsilaisite)
Grover John ; Choi Jin-Beom ;
Journal of the Mineralogical Society of Korea, volume 19, issue 1, 2006, Pages 15~29
Synthetic Mn-tourmalines (tsilaisite) were obtained by hydrothermal synthesis under the condition of 2 Kbar,
, and 50 day-run-time with complete substitution of Mg in dravite by Mn (Mn%=0, 25, 50, 75, and 100%). They are all 6 samples containing Mn-tourmaline with some amounts of albite, spessartine, rhodocrosite, phlogopite etc, showing different synthetic condition of temperature and Mn composition. Synthetic Mn-tourmalines are of site deficiency in X-site (
) more than that of natural ones (approx.
) and show Mn cations occupying Y-site less than expected with initial experiments, leading to failure in synthesis of end-member tsilaisite. Rietveld structural refinements reveal that
) is in the range of 13.35 and 18.62%,
and S (CofF) are
(S-18: 1.81), respectively. Unit cell parameters (space group R3m, z=3) are
in average (S-18:
). Average bond lengths of
), respectively. Ditrigonality (
) are in the range of 0.022 and 0.031 (S-18: 0.061), indicating degrading symmetry with increase of Mn content.
Influence of Coarse Grained Sandy Soil in Ground on Deterioration of Stone Cultural Properties
Do Jin-Young ;
Journal of the Mineralogical Society of Korea, volume 19, issue 1, 2006, Pages 31~38
Site environments bring about various different deterioration forms of stone cultural properties. The aim of this study is to document the influence of coarse grained sandy soil on the deterioration of stone cultural properties. Bulguksadabotap is a good example that demonstrates the problem with coarse grained sandy soil. The ground around the Bulguksadabotap is covered with coarse grained sandy soil and the pagoda is surrounded by the corridors. Coarse grained sandy soil float easily in the air and deposit in the complicated stone structure caused by strong wind in Gyeongju and numerous visitors. To explain the influence of coarse grained sandy soil on the deterioration, the coarse grained sandy soil and weathered stone pieces of Bulguksadabotap were analyzed by XRD, optical microscopy, SEM for mineralogical component and IC and ICP-AES for the soluble salts. The soil and weathered stone pieces include clay minerals, such as smectite and kaolinite, can expand with water and exert pressure on the stone. Small size of the clay minerals in the coarse grained sandy soil can easily penetrate into the weathered surfaces of the Bulguksadabotap. The weathered stone pieces also contain NaCl, which is known to contribute to increase the expandibility of clay minerals by providing with
or by dropping the equilibrium of relative humidity. These results indicates that coarse grained sandy soil is not proper to site environment for weathered stone cultural properties.
Characterization of Weathering Process in Biotite Gneiss and Granite, Ganghwa Island
Jang Yun-Deuk ; Kim Jeong-Jin ;
Journal of the Mineralogical Society of Korea, volume 19, issue 1, 2006, Pages 39~48
X-ray diffaction and chemical analysis were used for mineralogical characteristics of weathering grade of granite and biotite gneiss. Granite is composed mainly of quartz, albite, and minor K-feldspar and biotite gneiss is biotite, quartz, albite. Illite and kaolinite increased in granite, and vermiculite and halloysite in biotite gneiss as increasing weathering process. The percentages of
increase but that of CaO,
decrease as the weathering process.
different from granite and biotite gneiss.
Environmental Geological Characteristics of Suspended Matter and Turbidity Water at Gachang Dam in 2004
Choo Chang-Oh ; Koh Eun-Young ; Oh Soo-Jiu ; Lee Seong-Woo ; Kim Byoung-Ki ; Lee Ji-Eun ; Kim Yeong-Kyoo ;
Journal of the Mineralogical Society of Korea, volume 19, issue 1, 2006, Pages 49~61
This study was undertaken to investigate the origin of suspended matter to induce turbidity water in Gachang dam in view of environmental geology. During the period from May to August 2004, field works and sampling were carried out three times at the dam and along its streams, and chemical and mineralogical analyses such as ICP, IC, particle size analyzer, XRD and SEM were made on water, soil and suspended matter in water. Electrical conductivity (EC), turbidity, the contents of cation and anion increase from upstream toward the dam mostly due to the geological factors such as weathring of the rocks causing the increase of the total ion content. Vermiculite, illite, kaolinite, quartz, feldspar and iron hydroxide are commonly found in suspended matters in water and soils. Finer particles (d10) in soil increase slightly toward downstream and the vermiculite content is highest in the dam water. Since geological differences are not significant, mineralogy are similar in suspended matters and soils. Clay mineral compositions present in suspended matters were alsmost the same as those in soils, indicating the origin of soils by weathering of host rocks and being transported to the dam by stream water.