#hydroxylherderite

[vugnasmineralblog]

Hydroxylherderite & Fluorapatite Linópolis, Divino das Laranjeiras, Doce Valley, Minas Gerais, Brazil

[earthstory]

Hydroxylherderite

The apatite group of minerals (see http://bit.ly/2akYWkg) encompasses quite a variety of species, with this variant being a beryllium rich calcium phosphate. Like in the rest of the family, ions of similar size and charge such as OH and fluorine commonly substitute for each other in the crystal lattice alongside the beryllium and calcium, with the final product a result of the composition of the mother fluid from which the piece in question crystallised.<!_- more -->

Colour varies from yellow through brown to green or purple, though colourless specimens also turn up. It forms in granitic melts, usually crystallising in pegmatites, the last fluid rich parts of the magma that have concentrated all the rare and unusual elements that do not fit into the more common minerals' lattices. It forms in the late stages of crystallisation, often in cavities as water and steam rage together in the magma's last dying gasps. Another formation method is by alteration of minerals such as beryl, and precipitation from in veins.

It was discovered in Saxony in 1828 and named after a local mining official (a bit like Goethite was named after another better known mining official, this time from Weimar, see http://bit.ly/2aVMCHNfor a biopic). The hydroxy was added when this variant was discovered in 1894, and most specimens labelled Herderite are in fact this version.

Locations include Brazil, the Czech Republic, Finland, Germany, Italy, Namibia, Russia, Spain, England and the USA, though this pair rare purple specimens sitting on blue topaz (7.5 x 6.0 x 4.5 cm , see http://bit.ly/2jQ7sB0 for topaz) was mined in the Minas Gerais province of Brazil.

Loz

Image credit: Joe Budd/ Rob Lavinsky/iRocks.com

http://www.mindat.org/min-1962.html http://bit.ly/2aDZYrQ

[nmmrockshop]

RARE Fluorescent Hydroxylherderite Crystals with Quartz & Lepidolite from the Bennett Quarry in Buckfield, Maine! On Sale Now at Northern Maine Minerals Rock & Gem Shop! Message me to Purchase! #NorthernMaineMinerals #NmmRockShop

[minerals-paradise]

HydroxylHerderite with Albite , Hydroxyl Herderite Specimen from Skardu Pakistan - 72 g , 72*37 mm

HydroxylHerderite with Albite , Hydroxyl Herderite Specimen from Skardu Pakistan. Its really hard to find such big size herderite crystal. Herderite crystal is Double Terminated and Damage Free. It has beautiful albite. Its perfect self standing aesthetic specimen. Weight : 72 Gram Dimensions :

HydroxylHerderite with Albite , Hydroxyl Herderite Specimen from Skardu Pakistan - 72 g , 72*37 mm

[salmangems85]

Rare combination Pink tourmalines in association of Hydroxylherderite. More than 50 pcs and almost each piece has a hydroxylherderite crystal attach to it. Origin: Skardu District, Gilgit baltistan, Pakistan Steal price. $200 shipped. . . . . . . . . . . . . . #tourmaline#hydroxylherderite#herderite#gemstones#gemology#geology#mineralogy#mineralspecimens#arsaagems#salmangems85#pakistanminerals#gems #gemshop #cristal #crystals #saltbae#gemporn#love#nature#crystalhealing #crystaltherapy#instagood

[earthstory]

Hydroxylherderite

The apatite group of minerals (see http://bit.ly/2akYWkg) encompasses quite a variety of species, with this variant being a beryllium rich calcium phosphate. Like in the rest of the family, ions of similar size and charge such as OH and fluorine commonly substitute for each other in the crystal lattice alongside the beryllium and calcium, with the final product a result of the composition of the mother fluid from which the piece in question crystallised.

Colour varies from yellow through brown to green, though colourless specimens also turn up. It forms in granitic melts, usually crystallising in pegmatites, the last fluid rich parts of the magma that have concentrated all the rare and unusual elements that do not fit into the more common minerals' lattices. It forms in the late stages of crystallisation, often in cavities as water and steam rage together in the magma's last dying gasps. Another formation method is by alteration of minerals such as beryl, and precipitation from in veins.

It was discovered in Saxony in 1828 and named after a local mining official (a bit like Goethite was named after another better known mining official, this time from Weimar, see http://bit.ly/2aVMCHN for a biopic). The hydroxy was added when this variant was discovered in 1894, and most specimens labelled Herderite are in fact this version.

Locations include Brazil, the Czech Republic, Finland, Germany, Italy, Namibia, Russia, Spain, England and the USA, though this 4.7 x 4.0 x 2.3 cm rare green specimen sitting on a crystal of shorl (black tourmaline) was mined in the Gilgit region of the Hindu Kush in Pakistan. The last photo shows it fluorescing in UV light, whose high energy excite electrons into higher orbits, and when they fall back (since what goes up must come down unless it is held up) they emit lower energy light in the visible range of frequencies.

Loz

Image credit: Rob Lavinsky/iRocks.com http://www.mindat.org/min-1962.html http://bit.ly/2aDZYrQ

[earthstory]

Hydroxylherderite

The apatite group of minerals (see http://bit.ly/2akYWkg) encompasses quite a variety of species, with this variant being a beryllium rich calcium phosphate. Like in the rest of the family, ions of similar size and charge such as OH and fluorine commonly substitute for each other in the crystal lattice alongside the beryllium and calcium, with the final product a result of the composition of the mother fluid from which the piece in question crystallised.

Colour varies from yellow through brown to green, though colourless specimens also turn up. It forms in granitic melts, usually crystallising in pegmatites, the last fluid rich parts of the magma that have concentrated all the rare and unusual elements that do not fit into the more common minerals' lattices. It forms in the late stages of crystallisation, often in cavities as water and steam rage together in the magma's last dying gasps. Another formation method is by alteration of minerals such as beryl, and precipitation from in veins.

It was discovered in Saxony in 1828 and named after a local mining official (a bit like Goethite was named after another better known mining official, this time from Weimar, see http://bit.ly/2aVMCHN for a biopic). The hydroxy was added when this variant was discovered in 1894, and most specimens labelled Herderite are in fact this version.

Locations include Brazil, the Czech Republic, Finland, Germany, Italy, Namibia, Russia, Spain, England and the USA, though this 4.7 x 4.0 x 2.3 cm rare green specimen sitting on a crystal of shorl (black tourmaline) was mined in the Gilgit region of the Hindu Kush in Pakistan. The last photo shows it fluorescing in UV light, whose high energy excite electrons into higher orbits, and when they fall back (since what goes up must come down unless it is held up) they emit lower energy light in the visible range of frequencies.

Loz

Image credit: Rob Lavinsky/iRocks.com

http://www.mindat.org/min-1962.html http://bit.ly/2aDZYrQ

[bijoux-et-mineraux]

Hydroxylherderite (1969 pocket) with Tourmaline - Xanda Mine 1969 find, Virgem da Lapa, Jequitinhonha valley, Minas Gerais, Brazil