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광물의 특성 - G 10 2024.02.19해당카페글 미리보기
깨짐) 고르지 않은 uneven한 형태로 표면이 부서짐 color(색) 흰색, 연녹색, 회백색, 회갈색 density(밀도) 2.7~2.8 hardness(경도) 1 crystal system(결정계) 단사정계 luster(광택) 진주광택 streak(조흔색) 흰색 마) 용도 활석가루 원료, 아트지 재료...
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2월 18일 일요일 2024.02.18해당카페글 미리보기
afflictions - See the notes at 2 Timothy 2:3. The Greek word here is the same which is there rendered "endure hardness." Do the work of an evangelist - On the word "evangelist," see the notes on Acts 21:8. The phrase here means, "do the...
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16.보석감정 16.05 - 석영 Quartz - 03 황수정 citrine 2024.02.16해당카페글 미리보기
Chemical composition SiO2 Silicon dioxide Crystal system Trigonal Habit Prismatic Cleavage Poor Fracture Conchoidal Hardness 7 Optic nature Uniaxial + Refractive index 1.544 - 1.553 Birefringence 0.009 Dispersion 0.013 Specific gravity...
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16.보석감정 16.05 - 석영 Quartz - 02 아메트린 Amethrin 2024.02.16해당카페글 미리보기
Chemical composition SiO2 Silicon dioxide Crystal system Trigonal Habit Prismatic Cleavage Poor Fracture Conchoidal Hardness 7 Optic nature Uniaxial + Refractive index 1.544 - 1.553 Birefringence 0.009 Dispersion 0.013 Specific gravity...
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보석학 16. 보석종류 16.05 석영 Quartz 2024.02.16해당카페글 미리보기
Chemical composition SiO2 Silicon dioxide Crystal system Trigonal Habit Prismatic Cleavage Poor Fracture Conchoidal Hardness 7 Optic nature Uniaxial + Refractive index 1.544 - 1.553 Birefringence 0.009 Dispersion Low, 0.013...
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16. 보석종류 보석감정16.04 녹주석 04 바나듐 에메랄드 베릴 Vanadium Beryl 2024.02.15해당카페글 미리보기
aluminum silicate Crystal system Hexagonal Habit Prismatic Cleavage Imperfect, basal Fracture Conchoidal to uneven Hardness 7.5 (brittle) Optic nature Uniaxial - Refractive index 1.566 - 1.600 Birefringe gemologyproject.com 첼시 컬러...
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보석학 보석감정 16. 보석 종류 16.04 녹주석 에메랄드 beryl 2024.02.14해당카페글 미리보기
aluminum silicate Crystal system Hexagonal Habit Prismatic Cleavage Poor, basal Fracture Conchoidal to uneven Hardness 7.5 Optic nature Uniaxial - Refractive index 1.59 Birefringence 0.004 - 0.009 gemologyproject.com 블루 (아쿠아 마린...
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Desclusion dis order 2024.02.13해당카페글 미리보기
I wonder disclusion disorder . I feel hardness in my home. Sometime l feel frustraion when I am home with my wife. It may be dangerous disease.It make me hard and frustrate. My wife needs self esteem. I don't know how do I cure her.
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14 : 보석학 합성 보석 14.7 합성 큐빅 지르코니아 2024.02.13해당카페글 미리보기
4 Zirconium silicate Crystal system Tetragonal Habit Prismatic (squared) with pyramidal terminations Cleavage Poor Hardness 7.5 Optic nature Uniaxial + to isotropic Refractive index 1.78 - 1.99 Birefringence Up to 0.059 Dis...
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14 : 보석교육 합성 보석 14.6 합성 모이사나이트 2024.02.13해당카페글 미리보기
composition C Crystal system Cubic Habit Octahedral, cubic Cleavage Perfect (octahedral) Fracture Conchoidal Hardness 10 Optic nature Isotropic Refractive index 2.417 Birefringence None Dispersion High, 0.044 Specific gravity 3.52 Lustre...