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1.9" Fluorite, Goshenite & Mica Association - Namibia
Here is an association of fluorite, goshenite and mica, collected from the Erongo Mountains in Namibia. The fluorite was listed as forming as an encasement around schorl, however there is only one location where this looks to be evident. The fluorite is a deep green, the mica has a non-metallic luster and the goshenite can be found in multiple locations around the specimen. The fluorite fluoresces a white-purple color under UV lighting.
Goshenite is a white to colorless variety of beryl.
Goshenite is a white to colorless variety of beryl.
About Fluorite
Fluorite is a halide mineral comprised of calcium and fluorine, CaF2. The word fluorite is from the Latin fluo-, which means "to flow". In 1852 fluorite gave its name to the phenomenon known as fluorescence, or the property of fluorite to glow a different color depending upon the bandwidth of the ultraviolet light it is exposed to. Fluorite occurs commonly in cubic, octahedral, and dodecahedral crystals in many different colors. These colors range from colorless and completely transparent to yellow, green, blue, purple, pink, or black. Purples and greens tend to be the most common colors seen, and colorless, pink, and black are the rarest.
Fluorite is a halide mineral comprised of calcium and fluorine, CaF2. The word fluorite is from the Latin fluo-, which means "to flow". In 1852 fluorite gave its name to the phenomenon known as fluorescence, or the property of fluorite to glow a different color depending upon the bandwidth of the ultraviolet light it is exposed to. Fluorite occurs commonly in cubic, octahedral, and dodecahedral crystals in many different colors. These colors range from colorless and completely transparent to yellow, green, blue, purple, pink, or black. Purples and greens tend to be the most common colors seen, and colorless, pink, and black are the rarest.
About Quartz
Quartz is the name given to silicon dioxide (SiO2) and is the second most abundant mineral in the Earth's crust. Quartz crystals generally grow in silica-rich environments--usually igneous rocks or hydrothermal environments like geothermal waters--at temperatures between 100°C and 450°C, and usually under very high pressure. In either case, crystals will precipitate as temperatures cool, just as ice gradually forms when water freezes. Quartz veins are formed when open fissures are filled with hot water during the closing stages of mountain formation: these veins can be hundreds of millions of years old.
Quartz is the name given to silicon dioxide (SiO2) and is the second most abundant mineral in the Earth's crust. Quartz crystals generally grow in silica-rich environments--usually igneous rocks or hydrothermal environments like geothermal waters--at temperatures between 100°C and 450°C, and usually under very high pressure. In either case, crystals will precipitate as temperatures cool, just as ice gradually forms when water freezes. Quartz veins are formed when open fissures are filled with hot water during the closing stages of mountain formation: these veins can be hundreds of millions of years old.
About Smoky Quartz
Smoky quartz is a variety of quartz distinguished by its smoky gray to deep brown or nearly black coloration, a name inspired by the hazy, smoke-like appearance within the crystal. While some specimens can appear very dark or even opaque, most smoky quartz remains at least partially translucent, allowing light to pass through its internal veils and zoning. The color develops when trace amounts of aluminum within the quartz lattice are exposed to natural irradiation over geologic time, subtly altering the crystal structure and producing its characteristic smoky tones.
Smoky quartz is a variety of quartz distinguished by its smoky gray to deep brown or nearly black coloration, a name inspired by the hazy, smoke-like appearance within the crystal. While some specimens can appear very dark or even opaque, most smoky quartz remains at least partially translucent, allowing light to pass through its internal veils and zoning. The color develops when trace amounts of aluminum within the quartz lattice are exposed to natural irradiation over geologic time, subtly altering the crystal structure and producing its characteristic smoky tones.
SPECIES
Fluorite, Goshenite & Mica
LOCATION
Erongo Mountains, Namibia
SIZE
1.9" long, 1.9" wide
CATEGORY
ITEM
#93699
