He also produced about a dozen fist-sized rocks and carefully placed them,one at a time,into the jar. When the jar was filled to the top and no more rocks would fit inside,he asked,Is this jar full?站在那些高智商高学历的学生前面，他说：“我们来做个小测验”，拿出一个一加仑的广口瓶放在他面前的桌上。
随后，他取出一堆拳头大小的石块，仔细地一块放进玻璃瓶。
直到石块高出瓶口，再也放不下了，他问道：“瓶子满了？”Everyone in the class yelled,Yes.The time management expert replied,Really?He reached under the table and pulled out a bucket of gravel. He dumped some gravel in and shook the jar, causing pieces of gravel to work themselves down into the spaces between the big rocks.He then asked the group once more,Is this jar full?所有学生应道：“满了！”。
时间管理专家反问：“真的？”他伸手从桌下拿出一桶砾石，倒了一些进去，并敲击玻璃瓶壁使砾石填满下面石块的间隙。
“现在瓶子满了吗？”他第二次问道。
By this time the class was on to him.Probably not, one of them answered.Good!he replied.He reached under the table and brought out a bucket of sand. He started dumping the sand in the jar and it went into all of the spaces left between the rocks and the gravel.Once more he asked the question,Is this jar full?但这一次学生有些明白了，“可能还没有”，一位学生应道。
宝石学基础词汇宝石学 gemology 宝石 gem 珠宝 jewelry ， jewel宝石矿物 jem mineral 珍贵宝石 precious gemstone 有色宝石 colored stone有机宝石 organic gemstone 夹层石 assembled gemstone 二层石 doublet三层石 triplet 合成宝石 synthetic gemstone 原石 raw gemstone琢型宝石 polished gemstone 裸石 polished stone 玉石 jade观赏石 appreciation stone 生肖石 birthstones 绵 cloud比重 specific gravity 相对密度 specific gravity 断口 fracture缺口 nick 瑕疵 fault 折射率 refractive index单折射 simple refraction 双折射 double refraction 透明度 transparency多色性 pleochroism 色散 dispersion 闪烁 scintillation光泽 luster 亮度 brightness 星光 asterism荧光 fluorescence 变彩 play of color 巧色 ingenious color脏色 dirty color 猫眼效应cat’s eye effect 钻石 diamond祖母绿 emerald 红宝石 ruby 蓝宝石 sapphire金绿宝石 chrysoberyl 金绿宝石猫眼 chatoyant cat’s eye 尖晶石 spinel碧玺 tourmaline 橄榄石 peridot 托帕石 topaz锆石 zircon 石榴石 garnet 月光石 moonstone水晶 quartz (手,脚)镯 bangle (手,脚)链镯 bracelet耳环 earring， Dangler 耳丁 Earbob 项链 necklace肚脐饰品navel jewellery 环状肚脐饰品 belly ring 杠铃状肚脐饰品 barbell有坠子的肚脐饰品dangle 项链的坠子pendant 戒指ring脚趾戒指 toe ring 舌环tongue ring 舌饰条 tongue bar999纯银 fine silver 925银 sterling silver 800或900银coin silver 镀金的 gold plated硬度1 talc(softest) 滑石2 gypsum 石膏3 calcite 方解石4 fluorite 萤石5 apatite 磷灰石6 orthoclase 正长石7 quartz 水晶8 topoz 托帕石9 corundum 刚玉10 diamond(hardest) 钻石颜色pink 粉红色salmon pink 橙红色baby pink 浅粉红色shocking pink 鲜粉红色 brown 褐色, 茶色beige 灰褐色chocolate 红褐色, 赭石色sandy beige 浅褐色camel 驼色amber 琥珀色khaki 卡其色maroon 褐红色green 绿色 moss green 苔绿色emerald green 鲜绿色olive green 橄榄绿blue 蓝色 turquoise blue 土耳其玉色 cobalt blue 钴蓝色, 艳蓝色 navy blue 藏青色, 深蓝色, 天蓝色 aquamarine blue 蓝绿色red 红色 scarlet 绯红, 猩红mauve 紫红wine red 葡萄酒红purple, violet 紫色 lavender 淡紫色lilac 浅紫色antique violet 古紫色 pansy 紫罗兰色white 白色 off-white 灰白色 ivory 象牙色snowy white 雪白色 oyster white 乳白色 gray 灰色charcoal gray 炭灰色 smoky gray 烟灰色 misty gray 雾灰色dichroic 两向色性dichroiscope 二色镜dichroiscopic 二色镜的dichroism 两向色性dichroite 堇青石dichroitic 二色性的dichromatic 二色的dichromaticism 二色性dichromatism 二色dichromism 二色视dichroscope 二色镜Properties1. 宝石的物理性质（Physical Properties）(1) Hardness (2) Specific Gravity (3) Cleavage and Fracture2. 宝石的光学性质 (Optical Properties)(1) Color (2) Refractive Index (RI) (3) Luster (4) Interference (5) Cat’s eyes and StarsPave setting Bezel setting Prong setting Channel setting Flush settingTiffany-style solitaire 蒂凡尼型单粒宝石镶嵌Black: Obsidian OnyxBlue: Aquamarine Blue Lace Agate Lapis Lazuli Sapphire Tanzanite Topaz TurquoiseBrown: Agate Jasper Tiger EyeGreen: Alexandrite Aventurine Bloodstone Chrysoprase Emerald Jade Malachite Peridot Tourmaline Orange: CarnelianPink: Kunzite Rose Quartz TourmalineRed: Coral Garnet RubyViolet: AmethystWhite: Diamond Moissanite Moonstone Opal Pearl Quartz ZirconYellow: Amber Citrine Tiger EyeAntwerp Cut 安特卫普切工Baguette shape 长阶梯形拥有阶梯切割面的长方形钻石。
