天然的水晶一般都会有絮状（绵绺），也就是大家俗称的瑕疵，这是液体水落石出和二氧化碳的小孔穴，而人工合成的水晶就不会有这样的特征。
无色水晶以晶莹美丽、洁净透明着称。衡量无色水晶主要看它的纯度，越纯、越透明越好。干净的、无瑕疵的、杂质少的价值就高。无色的水晶如果很脏，就没有利用价值。
看做工：水晶制品加工过程分为两种，即磨工和雕工。如水晶项链、手链、耳环等属于研磨品；观音像、内画鼻烟壶等属于雕刻品。
The requested internal structure of huge crystals, such as fluorite and quartz demonstrated in this article, is reflected of their geometric styles.
根据美国已经了解的情况，统计局的专家和其他人口统计学家在他们的视野中提供了一个不可抗拒的水晶球。
Find out how the shape of your crystals identify the various minerals into familiesMinerals crystallize In line with one among seven motifs, referred to as crystal units.
光泽：玻璃光泽。断口处为油脂光泽。光泽，指宝石表面对光线反射的一种光学性质。观察水晶的光泽，可用手握着它，以灯光或窗户投进来的光线看表面反射，透明水晶亮度与光泽强弱有关。
Crystals are very little over an purchased arrangement of molecules or atoms. Crystals can be found in many various styles and sizes, and each has diverse features. Whatever they are created of establishes how it will eventually variety.
水晶包裹体丰富多彩，从气体、液体到各种矿物质，甚至宝石，均可被包含于水晶内，各种包裹体所形成的景象更是变化万千。按照包裹体的内容，常把包裹体水晶分为一下八类：
Crystals with evident flat faces are known as euhedral crystals, when Individuals lacking outlined faces are referred to as anhedral crystals. Crystals consisting of ordered arrays of atoms that aren't normally periodic are named quasicrystals.
看孔眼：对于缀穿水晶制品（如项链、手链、佛珠），要看孔眼是否平直，孔的粗细是否均匀，有无细小裂纹。孔壁必须清澈透明，无“白痕”。
The sodium chloride crystal lattice is characterized because of the close packing of the constructive sodium ions and negative chloride ions. Each sodium ion is surrounded by six chloride ions, and every chloride ion is surrounded by six sodium ions, developing a hugely secure and symmetrical structure.
水精：水晶为何称为水精，《广雅》有巧解：�?水之精灵�?”；李时珍则说：�?莹洁晶光，如水之精英 ”。细加考究，此称还蕴含浓厚的宗教意味呢。水精一名，最初见于佛书，后汉支曜翻译的《具光明定意经》说：�?其所行道，色如水�?�?。
An additional method of crystalline carbon relies on a molecule with sixty carbon atoms known as buckminsterfullerene (C60). The molecular form is spherical. Every single carbon is bonded to 3 neighbours, as in graphite, along with the spherical form is more info obtained by a mixture of 12 rings with 5 sides and 20 rings with six sides. Identical buildings had been initially visualized from the American architect R. Buckminster Fuller for geodesic domes.