Amethyst Mineral Gallery

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Amethyst mineral gallery.

By class carbonates elements halides oxides. Fluorite is a mineral with a veritable bouquet of brilliant colors. The most common minerals. Amethyst is a very common mineral and is found worldwide.

Amethyst a transparent coarse grained variety of the silica mineral quartz that is valued as a semiprecious gem for its violet colour. Amethyst can occur as long prismatic crystals that have a six sided pyramid at either end or can form as druzes that are crystalline crusts that only show the pointed terminations. Amethyst is the purple variety of the mineral quartz and is its most famous and valuable gem variety quartz also contains other gemstones such as citrine rose quartz and smoky quartz the color of amethyst is most often caused by iron impurities though it can also be colored by natural radiation exposure. A list of the primary chemical classes used to organize mineral species.

The world s largest gallery of gems minerals fossils and other natural history products check out our brand new natural history inventory just added to our website. Tall prismatic well shaped crystals are restricted to several mexican localities. Fluorite is well known and prized for its glassy luster and rich variety of colors. Some estimates place quartz at 21 of the earth s total lithosphere.

B y name framed unframed. Its physical properties are those of quartz but it contains more iron oxide fe 2 o 3 than any other variety of quartz and experts believe that its colour arises from its iron content. Minerals can be organized mainly according to their chemistry into the following classes. Amethyst galleries mineral gallery describes over 600 mineral species and 5 000 specimens see our new specimens last updated 23 jan 2015 and what s new last updated 03 sep 2014 together with several ways of accessing these descriptions.

Amethyst is sometimes heat treated to deepen the color or to transform it into citrine. Feldspar a group of related minerals comprises the bulk of the earth s. Piedras parado and las vigas de ramirez both in veracruz. The descriptions include searchable mineralogical data plus other information of interest to students and rock hounds.

Only a select few of the most famous localities will be mentioned here. Amethyst galleries mineral gallery minerals. As a mineral specimen amethyst is popular for its color and nice crystal shapes that produce a handsome purple sparkling cluster.