The only significant source of gemstone-grade Variscite is the Utahlite Claim, in the Lucin District, Box Elder County, Utah. Outstanding Variscite nodules associated with other phosphate minerals come from Clay Canyon, near Fairfield, Utah County, Utah, and …

Variscite is an phosphate mineral of aluminum with the composition AlPO 4.2H 2 O . This sample is from the Fairfield, Utah. It is on display in the Smithsonian Museum of Natural History. The sample measures about 20x20 cm. Variscite's apple green color comes from traces of chromium. It is popular for carvings and ornamental stones.

Variscite is a relatively rare phosphate mineral that is sometimes confused with turquoise. It is usually greener, however, than turquoise. Variscite is sometimes used as a semi-precious stone and can make distinctive color patterns that are very attractive. Occassionally it is altered into other phosphate minerals.

Variscite is a relatively rare phosphate mineral and high quality specimens are used as gemstones and for carvings.Its name is derived from Variscia, the historical name of Vogtland in Germany, where it was first found in 1837. At one time it also went under the name Utahlite, since important deposits have also been found in Utah, USA.. Variscite is often confused with turquoise, though ...

Aluminum Phosphate Preparation. We can extract them from minerals such as variscite, meta-variscite, and berlinite. Although, the chemical methods to prepare it are not very extended or related in literature. Aluminum Phosphate Physical Properties. It is a white crystalline powder that does not have any odor and has a density of 2.567 g/mL-1.

Variscite w-Quartz and limonite hydrous aluminum phosphate Slate Mountain El Dorado County California 1613.jpg 800 × 800; 110 KB Variscite, Musée de Préhistoire, Carnac, .jpg 1,000 × …

Variscite This mineral, a hydrous aluminum phosphate, occurs in dense microcrystalline nodular masses; No crystals have been found at this location. The beautiful green color has been attributed to small quantities of vanadium (0.53%) and chromium (0.069%) substituting for …

Variscite is a hydrated aluminium phosphate mineral (AlPO4·2H2O). It is a relatively rare phosphate mineral. The green color results from the presence of small amounts of chromium. Variscite is a stone with a lovely vibration that will kindle joyous feelings and bring peace and harmony to your heart.

Peter Downes, Benjamin Grguric, Margot Willing, Geoff Deacon, Michael Verrall (2018) Variscite and associated phosphate minerals from the Mt Deverell variscite deposits, Milgun Station, Gascoyne region, Western Australia. in abstracts of the 22nd IMA Meeting Melbourne p 319 ⓘ Milgun Variscite Mine (Mount Deverell)

Phosphate mineral, any of a group of naturally occurring inorganic salts of phosphoric acid. Phosphates can be grouped as: primary phosphates that have crystallized from a liquid; secondary phosphates formed by the alteration of primary phosphates; and rock phosphates formed from phosphorous-bearing organic material.

Variscite is a hydrated aluminium phosphate mineral. Variscite vibrates to the numer 7. Variscite Associations. Zodiac - Scorpio, Taurus, Gemini Typical colour - ranges from pale to emerald green . Healing with Variscite ♥ Moral courage ♥ Virtue ♥ Self-reliance ♥ Success ♥ Calming ♥ Soothing.

Formula: AlPO 4.2H 2 O ORTHORHOMBIC Description: Variscite occurs as a groundwater precipitate in aluminum- rich rocks. It is found asociated with other phosphate minerals such as apatite, wavellite and crandallite. DODGE COUNTY: Microscopic colorless to pale pink to yellowish grains of variscite have been identificed in oolites from the Mayville iron formation as exposed in outcrops and in ...

Variscite, phosphate mineral, hydrated aluminum phosphate (AlPO 4 ·2H 2 O), which is valued as a semiprecious gemstone and an ornamental material. Both variscite and strengite, a similar mineral in which iron replaces aluminum in the crystal structure, occur as glassy nodules, veins, or crusts, in near-surface deposits: variscite is produced by the action of phosphate-rich waters on aluminous ...

Variscite is a secondary mineral formed by direct deposition from phosphate-bearing water that has reacted with aluminium-rich rocks in a near-surface environment. It occurs as fine-grained masses in nodules, cavity fillings, and crusts. Variscite often contains white veins of the calcium aluminium phosphate mineral crandallite.

Variscite is an important phosphate mineral that is best-known in different shades of green. A highly desired form of this mineral are the exceptional nodules from Utah which are cut and polished as slabs or halves of nodules. These formations are usually associated with other phosphates and have interesting veins and color habits. Variscite may alter into other phosphate minerals, especially ...

Aluminum and iron phosphate minerals are relatively common in Arkansas if one knows where to look for them. The aluminum phosphates, wavellite and variscite are commonly associated with the Big Fork Chert Formation. Any outcrop or exposure of the Big Fork Chert has the potential of containing at least some wavellite and variscite.

Variscite, an aluminum hydrated phosphate mineral, is rather an uncommon phosphate mineral which people tend to confuse with turquoise. A secondary mineral created by direct deposition from water that is phosphate-rich and reacted with rocks rich in Aluminum environments that are near-surface.

What is Variscite? Variscite is a rare hydrated aluminum phosphate mineral with a chemical composition of AlPO 4 •2H 2 O. It is usually green in color, ranging from yellowish green to bluish green. It does not have any significant industrial use.

Variscite is one of the most sought after minerals in the entire mineral collecting world. Variscite is a hydrated aluminum phosphate mineral. It is a relatively rare phosphate mineral that is formed by phosphate rich water deposits that react with aluminum rich rocks in a near-surface environment. It occurs as fine-grained masses in

Metavariscite is a rare phosphate mineral that is rather difficult to distinguish from its very close cousin, variscite.The two minerals are polymorphs, meaning many shapes, since the two minerals have the same chemistry but different atomic structures.Variscite is orthorhombic and metavariscite is …

Variscite - Polished green Variscite nodule. This locality is arguably one of the best in the world. The yellow bands around the Variscite is another phosphate called Crandallite. Very nice specimen acquired by Arnold Hampson in 1942. . This and many more mineral specimens are available for sale at Dakota Matrix Minerals.

Variscite Meanings, Zodiacs, Planets, Elements, Colors, Chakras, and more. Science & Origin of VarisciteVariscite, also known as Utahlite, is a very rare hydrated aluminum phosphate mineral that crystallizes in the form of masses and crusts. Rarely does it occur in crystal form, but when it does it is seen in an octahedral shape. The colors can range from light green to teal, which is similar ...

Dec 12, 2013· The mineral that may be the second most popular species to collect in Arkansas (after quartz) is wavellite. This fascinating mineral is a hydrated aluminum phosphate [Al 3 (P O 4) 2 (OH, F) 3 ·5 H 2 O] that commonly appears in botryoidal and radial aggregates, a trait that makes specimens quite interesting. Fairly soft at ~3.5-5.0 (Mohs), the mineral has a vitreous to silky luster and is ...

Apr 17, 2020· Variscite is a hydrated aluminium phosphate mineral (AlPO 4 ·2 H 2 O). It is a relatively rare phosphate mineral. It is sometimes confused with turquoise; however, variscite is usually greener in color. The green color results from the presence of small amounts of chromium.

Variscite is an end-member of the isomorphic row of variscite-strengite series of minerals. Like the garnet and feldspar groups, variscite-strengite minerals have an identical crystalline structure, but exhibit slightly varying composition. Owing to variscite's unique mode of occurrence, it is often formed and associated with other phosphate ...

The (PO 4) 3− radical combines with some 30 elements to form over 300 phosphate minerals, out of which 57 have been found in different cave settings. Hydroxylapatite, brushite, ardealite, taranakite, and variscite are the most abundant ( Table 1 ); all the other phosphates are rare.

The alteration minerals of the variscite at Fairfield have probably not formed as a result of further introduction of phosphate, but by a later reworking of the phosphate in the variscite. This suggests that the phosphate was introduced throughout some period which ended completely, and perhaps abruptly, with the cessation of phosphatic solutions.

Variscite is a hydrated aluminium phosphate mineral deposited from phosphatic waters reacting with aluminium rich rocks at surface or near-surface conditions. Variscite is relatively rare due to alteration to other phosphate minerals, particularly Crandallite.

White nodular crandallite with green variscite and other phosphate minerals. From Clay Canyon, near Fairfield, Utah County, Utah. (Photo by W. Cordua.) Formula: CaAl 3 (PO 4) 2 (OH) 5.H 2 O Hexagonal. Description: Crandallite is used here to refer to a group of minerals in the Crandallite group, including florencite. Crandallite itself is ...

Phosphate minerals contain the tetrahedrally coordinated phosphate (PO 4 3−) anion along sometimes with arsenate (AsO 4 3−) and vanadate (VO 4 3−) substitutions. Chlorine (Cl −), fluorine (F −), and hydroxide (OH −) anions that also fit into the crystal structure.. The phosphate class of minerals is a large and diverse group, however, only a few species are relatively common.

Geology. Variscite is a secondary mineral formed by direct deposition from phosphate-bearing water that has reacted with aluminium-rich rocks in a near-surface environment. It occurs as fine-grained masses in nodules, cavity fillings, and crusts.Variscite often contains white veins of the calcium aluminium phosphate mineral crandallite.. It was first described in 1837 and named for the ...

The (PO 4) 3− radical combines with some 30 elements to form over 300 phosphate minerals, out of which 57 have been found in different cave settings. Hydroxylapatite, brushite, ardealite, taranakite, and variscite are the most abundant (Table 1); all the other phosphates are rare. They occur whenever a cave contains fresh or fossil bat guano ...

Variscite is a hydrated aluminum phosphate, and a relatively rare phosphate mineral. This semiprecious gemstone gets its green color from a trace amount of chromium and vanadium. It is often confused with green turquoise, however Variscite is usually a richer green, but it can come in many shades of green from yellowish to blueish.

The alteration minerals of the variscite at Fairfield have probably not formed as a result of further introduction of phosphate, but by a later reworking of the phosphate in the variscite. This suggests that the phosphate was introduced throughout some period which ended completely, and perhaps abruptly, with the cessation of phosphatic solutions.

Variscite is a hydrous aluminum phosphate, Al(H 2 O) 2 (PO 4), with a Mohs hardness of around 4. It forms as a secondary mineral near the surface in places where clay minerals and phosphate minerals occur together. As these minerals break down, variscite forms in massive veins or crusts. Crystals are small and very rare.