It is the blue form of what mineral

it is the blue form of what mineral

Lapis lazuli

The Mineral aquamarine Aquamarine is the greenish-blue to blue variety of Beryl. It forms in beautiful crystals that can be quite large and totally transparent. Unlike Emerald which usually is flaw ed or heavily included, Aquamarine can form in stunning . Azurite often occurs with green Malachite, which may form green stains or specks on Azurite crystals or aggregates. The two minerals sometimes occur admixed or banded together, forming what is called "Azure-malachite" in the gem and mineral trades. A rarer Azurite mixture, known as "Bluebird", is Azurite mixed with dark red lovedatme.come, "Azure-malachite", and "Bluebird" all have gem uses.

View All Videos View Jt. The Mineral aquamarine. Aquamarine is the greenish-blue to blue variety of Beryl. It forms in beautiful crystals that can be quite large and totally transparent. Ths Emerald which usually is flaw ed or heavily includedAquamarine can form in stunning flawless crystals, creating some of the most beautiful mineral masterpieces. Duller or greenish colored stones can be oc to very high temperatures in which they can attain a beautiful sky-blue color. In fact, much of the Aquamarines used as gemstones are actually heat treated.

For additional information, see the th section on Aquamarine. Let us know how we can update this page Click for more details. We strive for accurate content and what does g t o mean information. If you feel any of the content is incorrect, or if you feel we are missing vital locality information, please fill out the form below so we can update the site.

If you are requesting a locality be added, please only include significant locality occurences for the mineral. About Minerals. Link Directory Donations Mobile Site. Chemical Formula. Beryllium aluminum silicate. Greenish-blue, light blue, sky blue, deep sky-blue.

Crystal Oof. Crystal Forms and Aggregates. Often as perfect, six-sided hexagons, and usually in individual prismatic crystals. Also in what is the group of death in the world cup, stubby crystals, and occasionally in tabular crystals and flattened hexagonal plate s. The base s of Beryl crystals are usually flat; pyramidal termination s are less what are the health risks to individuals who smoke. Also occurs in columnar aggregates, in distorted etched crystals, and in massive form.

Occasionally in drusy or platy aggregates and as bundles of thin, long crystals. Crystals may be striated lengthwise. Transparent to translucent. Specific Gravity. Uneven to conchoidal. In It is the blue form of what mineral. Minneral ; Cyclosilicates. Striking Features. Crystal habits, color, and associated minerals. In granite pegmatite s. Rock Type. Ks Prevalence Demand Aquamarine is the most popular light-blue gemstone, and is extensively used in jewelry.

Rings, earrings, and bracelets are made from Aquamarine, and it is especially important as a pendant stone, with fairly large pendants being facet ed from Aquamarine. Very large display gems, that are too large for standard jewelry use, are occasionally faceted for exclusive collectors. Less transparent stones may be cut into cabochon s. Quality Aquamarine crystals are also highly valued by collectors in their natural form.

Despite the relatively abundant supply of fine Minsral, good crystals still demand a premium. Numerous localities worldwide produce outstanding specimens; this list is by no means complete. A deep blue Aqumarine comes from Medina in Minas Gerais. Pakistan undoubtedly produces the most outstanding crystals of Aquamarine, and some of these crystals can be huge gemmy giants.

Beautiful Aquamarine crystals have been coming it is the blue form of what mineral ut China at Mt. A locality of special note is Erongo, Namibia, where an intensely colored Aquamarine is found that is especially treasured by collectors.

Antero, Chaffee Co. Apatite - Much softer. Topaz - Forms in different crystals. Blue Tourmaline - Usually striated lengthwise, different crystal form. Celestine - Much fprm, different crystal habits.

Have a question about Aquamarine? To sponsor this page, click here. Amazon Supply Store. Hammers, Chisels, Loupes, Cotton-filled boxes, etc. Recommended Reading. Our Recommended Book Selection at Amazon. Support Minerals. Blur Donations and Collection Acquisitions.

Complete Information Guide to Rocks, Minerals, & Gemstones

Bright blue, sky-blue, greenish-blue: Streak: White: Hardness: Crystal System: Triclinic: Crystal Forms and Aggregates: Crystals, which are rare in nature, are in short prismatic form and in thick tabular crystals. Most often as fibrous veins, which are commonly curved, and as and flowering curved masses of parallel fibrous crystals. Lapis lazuli (/ ? l ? p ? s ? l ? zj ? l i,-l a? /), or lapis for short, is a deep-blue metamorphic rock used as a semi-precious stone that has been prized since antiquity for its intense color.. As early as the 7th millennium BCE, lapis lazuli was mined in the Sar-i Sang mines, in Shortugai, and in other mines in Badakhshan province in northeast Afghanistan.. Lapis lazuli artifacts. Azurite is a soft, deep-blue copper mineral produced by weathering of copper ore deposits. During the early 19th century, it was also known as chessylite, after the type locality at Chessy-les-Mines near Lyon, France. The mineral, a basic carbonate with the chemical formula Cu 3 (CO 3) 2 (OH) 2, has been known since ancient times, and was mentioned in Pliny the Elder's Natural History under.

View All Videos View Minerals. The Mineral turquoise. Turquoise is an antique ornamental stone, highly regarded for its unique and striking namesake color. Valued in both the ancient Persian and Native American civilizations, it still retains its popularity today. Turquoise specimens are often polished or sliced for collectors, and may even be dyed. Turquoise is porous and has a naturally waxy luster ; it is sometimes impregnated with a plastic lubricant for to enhance its luster and increase its stability.

Many Turquoise fakes exist. The most prevalent is white Howlite dyed blue to resemble Turquoise. Turquoise often contains embedded shiny Pyrite flakes, or may contain black oxide veins running through it.

It is sometimes intergrown together with other secondary copper materials, especially Chrysocolla. Turquoise may also form as a pseudomorph of other minerals such as Apatite , Beryl , and feldspar s. For additional information, see the gemstone section on Turquoise. Eilat Stone. Kingman Turquoise. Let us know how we can update this page Click for more details. We strive for accurate content and locality information. If you feel any of the content is incorrect, or if you feel we are missing vital locality information, please fill out the form below so we can update the site.

If you are requesting a locality be added, please only include significant locality occurences for the mineral. About Minerals. Link Directory Donations Mobile Site. Chemical Formula. Hydrous basic copper aluminum phosphate. Turquoise-blue, sky-blue, bluish-green, apple-green. Crystal System. Crystal Forms and Aggregates. Most often nodular , massive , concretionary , botryoidal , and reniform.

May also be in vein s, in cauliflower-shaped masses, in rounded balls, as crusts, and in stalactitic form. Turquoise crystals are very rare and limited to a few specific localities, where they are found as tiny drusy crystals within thin crusts and in rosette forms.

May be translucent in thin sections. Specific Gravity. Waxy , dull. In Group. Striking Features. Color, hardness, and mode of occurrence. As an alteration mineral in hydrothermal replacement deposit s, usually in arid copper-bearing regions. Rock Type. Sedimentary , Metamorphic. Popularity Prevalence Demand Eilat Stone - Greenish-blue mixture of Chrysocolla , Turquoise and other copper minerals such as Malachite from the copper mines near Eilat in Israel.

Turquoise is an important gemstone. Its bright color has afforded it important gem use throughout several ancient civilizations, and today it remains an important yet affordable gemstone. Turquoise gemstones are usually cabochon s and beads, but may also be ornate carvings of animals and flowers. Turquoise specimens are also popular among mineral collectors, and the crystallized form from Virginia is especially highly desired and valuable. Though Turquoise is found worldwide, the vast majority of Turquoise originates from the southwestern United States.

However, one of the most important and classic localities is Nishapur, Iran, where Turquoise has been mined since the ancient Persians. Mexico has several important Turquoise localities, including odd pseudomorph s after Apatite in Cananea and Baviacora, Sonora. In the U. Turquoise of excellent color and quality is well known at Kingman, Mohave Co. The best and most apparent crystals of Turquoise, in the form of visible microcrystals, come from Lynch Station, Campbell Co. Turquoise may be very similar and very difficult to distinguish from Variscite , though Variscite is usually greener.

Chrysocolla may also be similar though it is lower in hardness and usually has a more vitreous luster. Have a question about Turquoise? To sponsor this page, click here. Amazon Supply Store. Hammers, Chisels, Loupes, Cotton-filled boxes, etc. Recommended Reading. Our Recommended Book Selection at Amazon. Support Minerals. Financial Donations and Collection Acquisitions.

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