Quartz

石英

Quartz

石英

Rose quartz

玫瑰石英

Amethyst

紫水晶

Quartz is silicon dioxide, SiO₂. Quartz is abundant in the Earth's crust, being the chemically simplest form of the silicates. It appears in many forms. All the samples here are displayed in the Smithsonian Museum of Natural History.

石英是二氧化硅，SiO₂。石英在地壳中很丰富，是硅酸盐中化学最简单的形式。它以多种形式出现。所有这些样本都陈列在史密森尼自然历史博物馆中。

This section of agate quartz is displayed at about actual size.

这块agate石英的部分以大约实际大小展示。

Quartz is typically characterized by a density of about 2.65 gm/cm³, an index of refraction of about 1.54-1.55, and a hardness of about 7 on the Mohs hardness scale.

石英通常具有约2.65 g/cm³的密度，折射率约为1.54-1.55，莫氏硬度约为7。

Giant quartz crystals

巨型石英晶体

Quartz with other minerals

含其他矿物的石英

Milky quartz

牛奶石英

Gwendel quartz

格温德尔石英

Clear crystal quartz forms naturally when silica rich solutions occur in underground cavities and fractures where conditions will allow unobstructed growth. The smooth planar surfaces reflect the symmetry of the crystal lattice, but do not represent cleavage planes. When the hexagonal symmetry is exhibited by the crystals, it represents the pattern formed by unobstructed growth.

清澈的石英晶体是在地下空腔和裂隙中富含二氧化硅的溶液在条件允许的情况下自然形成的。光滑的平面反映了晶体晶格的对称性，但并不表示解理面。当晶体表现出六方对称性时，这代表了无阻碍生长所形成的模式。

Rose Quartz

玫瑰石英

Quartz is silicon dioxide, SiO₂. Quartz is abundant in the Earth's crust, being the chemically simplest form of the silicates. All the samples here are displayed in the Smithsonian Museum of Natural History. The rose quartz sample at right is about 18x10 cm and is from Minas Gerais, Brazil.

石英是二氧化硅，SiO₂。石英在地壳中很丰富，是硅酸盐中化学最简单的形式。所有这些样本都陈列在史密森尼自然历史博物馆中。右侧的玫瑰石英样本尺寸约为18×10厘米，来自巴西的米纳斯吉拉斯州。

A sample of rose quartz on display at the Smithsonian Museum of Natural History

史密森尼自然历史博物馆展出的玫瑰石英样本

The gems above are 84 and 110.6 carats and are from Minas Gerais, Brazil.

上面的宝石重84和110.6克拉，来自巴西的米纳斯吉拉斯州。

This rose quartz gem is 374.9 carats, also from Minas Gerais.

这种玫瑰石英宝石重374.9克拉，也来自米纳斯吉拉斯州。

This sample of rose quartz is about 22x15 cm and is from Galilea mine, Sapucaia pegmatite, Minas Gerais, Brazil.

这块玫瑰石英样品尺寸约为22厘米×15厘米，采自巴西巴伊亚州萨普卡亚伟晶岩矿的加利莱亚矿脉。

"This specimen is sometimes called the "Pink Tutu" because of its rose quartz frill. The smoky quartz formed first, then the rose quartz. Geologists suspect the pink tint comes from traces of alumninum and phosphorus."

这种样本有时被称为‘粉红 Tutu’，因其玫瑰石英的波纹状纹理而得名。烟色石英先形成，随后是玫瑰石英。地质学家怀疑粉红色的来源是铝和磷的微量存在。

This shows more detail about the habit of formation of the sample above. Below is another view of this extraordinary specimen.

这展示了上述样品形成习惯的更多细节。以下是该非凡样品的另一个视角。