My Etsy shop: FreakenFru
i make all cabochons myself
if you have any questions, ask me
Best regards, Dmitrii Danilov
- Size: 23.2*15.3*4.3 mm
- Weight: 3.2 grams
- Origin: Kola peninsula, the city of Kovdor, Russia
Super gorgeous green Phlogopite
Tetraferriphlogopite Mica
I am SURE you will make Superb Jewelry with this stone!
collectible specimen
Mica containing Manganese, giving a reddish shade.
The entire surface of iridescent.
When exposed to light, mica, absorbs it.
All minerals, cut, I make and polish independently.
Phlogopite cabochon, perfect for silver, gold, wire wrapping, leather or beading jewelry.
Flat back. Mirror and High quality polishing.
This is high quality hand - polished Phlogopite piece. This phlogopite gemstone also could be a central stone in a powerfull wire wrapped, silver, gold, leather or beading jewelry and amulet.
Combined shipping is available on multiple purchases and occurs automatically.
Edges under the polished, neat chamfer on the underside, back side glossy.
Phlogopite is a yellow, greenish, or reddish-brown member of the mica family of phyllosilicates. It is also known as magnesium mica.
Phlogopite is the magnesium endmember of the biotite solid solution series, with the chemical formula KMg3AlSi3O10(F,OH)2. Iron substitutes for magnesium in variable amounts leading to the more common biotite with higher iron content. For physical and optical identification, it shares most of the characteristic properties of biotite.
Paragenesis
Phlogopite is an important and relatively common end-member composition of biotite. Phlogopite micas are found primarily in igneous rocks, although it is also common in contact metamorphic aureoles of intrusive igneous rocks with magnesian country rocks and in marble formed from impure dolomite (dolomite with some siliclastic sediment).
The occurrence of phlogopite mica within igneous rocks is difficult to constrain precisely because the primary control is rock composition as expected, but phlogopite is also controlled by conditions of crystallisation such as temperature, pressure, and vapor content of the igneous rock. Several igneous associations are noted: high-alumina basalts, ultrapotassic igneous rocks, and ultramafic rocks.
Basaltic association
The basaltic occurrence of phlogopite is in association with picrite basalts and high-alumina basalts. Phlogopite is stable in basaltic compositions at high pressures and is often present as partially resorbed phenocrysts or an accessory phase in basalts generated at depth.
Ultrapotassic association
Phlogopite mica is a commonly known phenocryst and groundmass phase within ultrapotassic igneous rocks such as lamprophyre, kimberlite, lamproite, and other deeply sourced ultramafic or high-magnesian melts. In this association phlogopite can form well preserved megacrystic plates to 10 cm, and is present as the primary groundmass mineral, or in association with pargasite amphibole, olivine, and pyroxene. Phlogopite in this association is a primary igneous mineral present because of the depth of melting and high vapor pressures.
Ultramafic rocks
Phlogopite is often found in association with ultramafic intrusions as a secondary alteration phase within metasomatic margins of large layered intrusions. In some cases the phlogopite is considered to be produced by autogenic alteration during cooling. In other instances, metasomatism has resulted in phlogopite formation within large volumes, as in the ultramafic massif at Finero, Italy, within the Ivrea zone. Trace phlogopite, again considered the result of metasomatism, is common within coarse-grained peridotite xenoliths carried up by kimberlite, and so phlogopite appears to be a common trace mineral in the uppermost part of the Earth's mantle. Phlogopite is encountered as a primary igneous phenocryst within lamproites and lamprophyres, the result of highly fluid-rich melt compositions within the deep mantle.
Miscellaneous
The largest documented single crystal of phlogopite was found in Lacey mine, Ontario, Canada; it measured 10x4.3x4.3 m3 and weighed about 330 tonnes. Similar-sized crystals were also found in Karelia, Russia.
Cabochons do it myself, giving everyone special attention! Also I can make the necessary shapes, sizes, sets. All the cabochons do without a backing.
For me, working with gemstones, not just work, as for those who produce polished stones, this is the whole universe, which shone all life!
General experience in stone processing 17+(2022) years.
From the age of 7, his father taught the basics, and at the age of 10 he carved a stone carving, sharpened balls, complex table sets and boxes.
Of these, the professional experience of cutting precious and colored stones is 17+(2022) years.
Achieved the highest quality polishing, perfect symmetry and high precision in the manual production of cabochons with different and complex composite minerals, where the difference in hardness varies from 2 to 9 on the Mohs scale.
I make all the tools myself, and find minerals every year, in the summer season, in the mountains of the Kola Peninsula and North Karelia.
Participated in about 100 mineralogical and jewelry exhibitions in Russia, which are international.
And also participation in 2 mineralogical exhibitions in Finland and Sweden.
Participation in the festivals of art spaces such as Heat of the North, Solar Sister, Chill Out Planet with the creation of "Fantastic Stones" space on them.
Took part in dozens of handmade fairs.
Masters from more than 40+(2022) countries use cabochons made by me, in creating high-complexity ornaments of such materials and techniques as beadwork, wire ornaments, sutras, macrame, jewelry made of genuine leather, jewelry art.
Hundreds of craftsmen want to cut stones preferably from me, knowing that I can make the highest quality on their sketches to within a fraction of a millimeter.
The color may vary slightly depending on the graphics card settings.
return the goods at the expense of the buyer.