229 of #365Minerals 🧪⚒️
Willemite:
- A silicate mineral
- Forms in metamorphosed zinc deposits
- A minor ore of zinc
- Fluoresces green under UV light
- Named after William I (1772-1843), king of the Netherlands #minerals
Willemite:
- A silicate mineral
- Forms in metamorphosed zinc deposits
- A minor ore of zinc
- Fluoresces green under UV light
- Named after William I (1772-1843), king of the Netherlands #minerals
August 17, 2025 at 11:00 AM
229 of #365Minerals 🧪⚒️
Willemite:
- A silicate mineral
- Forms in metamorphosed zinc deposits
- A minor ore of zinc
- Fluoresces green under UV light
- Named after William I (1772-1843), king of the Netherlands #minerals
Willemite:
- A silicate mineral
- Forms in metamorphosed zinc deposits
- A minor ore of zinc
- Fluoresces green under UV light
- Named after William I (1772-1843), king of the Netherlands #minerals
Mineral Matters # 698 - Willemite, Preguiça Mine, Portugal
#mineralmatters #minerals #🧪 open.substack.com/pub/mineralm...
#mineralmatters #minerals #🧪 open.substack.com/pub/mineralm...
Willemite, Preguiça Mine, Portugal
Mineral Matters #698
open.substack.com
May 18, 2025 at 12:56 AM
Mineral Matters # 698 - Willemite, Preguiça Mine, Portugal
#mineralmatters #minerals #🧪 open.substack.com/pub/mineralm...
#mineralmatters #minerals #🧪 open.substack.com/pub/mineralm...
Some minerals have a hidden life under ultraviolet light. Calcite glows red, willemite blazes neon green, and fluorite — the mineral that gave fluorescence its name — shines blue-violet.
Next time you visit a mineral show, find the UV room. It will change how you see rocks forever.
Next time you visit a mineral show, find the UV room. It will change how you see rocks forever.
March 10, 2026 at 6:56 PM
Some minerals have a hidden life under ultraviolet light. Calcite glows red, willemite blazes neon green, and fluorite — the mineral that gave fluorescence its name — shines blue-violet.
Next time you visit a mineral show, find the UV room. It will change how you see rocks forever.
Next time you visit a mineral show, find the UV room. It will change how you see rocks forever.
Fluorescent minerals🔦 self-collected in NJ.
(For mineral ID and descriptions, click the image below.)
#rockhound #explore #nature #fluorescent #geology #minerals
(For mineral ID and descriptions, click the image below.)
#rockhound #explore #nature #fluorescent #geology #minerals
November 25, 2024 at 4:22 AM
Fluorescent minerals🔦 self-collected in NJ.
(For mineral ID and descriptions, click the image below.)
#rockhound #explore #nature #fluorescent #geology #minerals
(For mineral ID and descriptions, click the image below.)
#rockhound #explore #nature #fluorescent #geology #minerals
Hardystonite, Clinohedrite, Calcite, Willemite, Red Zincite & Franklinite. Franklin Mine, Franklin, NJ. Hardystonite was found in abundance in the Franklin Mine, but not at the Sterling Hill mine. Photographed under 254nm SW. 🧪 youtu.be/8_Wef96SX7M
#fluorescent #minerals #fluorescence #geology
#fluorescent #minerals #fluorescence #geology
The Spectacular Six. Hardystonite, Clinohedrite, Calcite, Willemite, Red Zincite & Franklinite.
YouTube video by Studio Mineralia
youtu.be
January 10, 2025 at 7:34 AM
Hardystonite, Clinohedrite, Calcite, Willemite, Red Zincite & Franklinite. Franklin Mine, Franklin, NJ. Hardystonite was found in abundance in the Franklin Mine, but not at the Sterling Hill mine. Photographed under 254nm SW. 🧪 youtu.be/8_Wef96SX7M
#fluorescent #minerals #fluorescence #geology
#fluorescent #minerals #fluorescence #geology
Fluorescent Friday! Calcite and what is believed to be Hardystonite, with Willemite and Franklinite from the legendary Franklin Mine in Franklin, NJ! #fluorescentfriday #minerals #fluorescence #newjersey #mineralcollection
November 29, 2024 at 11:15 PM
Fluorescent Friday! Calcite and what is believed to be Hardystonite, with Willemite and Franklinite from the legendary Franklin Mine in Franklin, NJ! #fluorescentfriday #minerals #fluorescence #newjersey #mineralcollection
This seems #festive! An interesting, local, artifact shaped from the classic Franklin Mine combination, Willemite & Franklinite in Calcite. Great contrast and UV reactivity. 254 Shortwave UV & Full Spectrum light. 🧪 #fluorescent #geology #minerals #mineralspecimen #earthscience #newjersey
December 22, 2025 at 10:04 AM
This seems #festive! An interesting, local, artifact shaped from the classic Franklin Mine combination, Willemite & Franklinite in Calcite. Great contrast and UV reactivity. 254 Shortwave UV & Full Spectrum light. 🧪 #fluorescent #geology #minerals #mineralspecimen #earthscience #newjersey
Willemite Zn²⁺₂SiO₄
Poudrette quarry (De-Mix quarry; Demix quarry; Uni-Mix quarry; Carrière Mont Saint-Hilaire; MSH), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
FOV = 1.58 mm
#1585
NFS
#minerals
Poudrette quarry (De-Mix quarry; Demix quarry; Uni-Mix quarry; Carrière Mont Saint-Hilaire; MSH), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
FOV = 1.58 mm
#1585
NFS
#minerals
March 16, 2025 at 11:41 PM
Willemite Zn²⁺₂SiO₄
Poudrette quarry (De-Mix quarry; Demix quarry; Uni-Mix quarry; Carrière Mont Saint-Hilaire; MSH), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
FOV = 1.58 mm
#1585
NFS
#minerals
Poudrette quarry (De-Mix quarry; Demix quarry; Uni-Mix quarry; Carrière Mont Saint-Hilaire; MSH), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
FOV = 1.58 mm
#1585
NFS
#minerals
1 Billion year old rock from a zinc mine in northern New Jersey
Franklinite-willemite-calcite rock under ultraviolet black light from New Jersey, USA
Red fluorescence = calcite
Green fluorescence = willemite
Black = franklinite
#Geology #Blacksky #Rockhound
Franklinite-willemite-calcite rock under ultraviolet black light from New Jersey, USA
Red fluorescence = calcite
Green fluorescence = willemite
Black = franklinite
#Geology #Blacksky #Rockhound
December 9, 2024 at 10:22 PM
1 Billion year old rock from a zinc mine in northern New Jersey
Franklinite-willemite-calcite rock under ultraviolet black light from New Jersey, USA
Red fluorescence = calcite
Green fluorescence = willemite
Black = franklinite
#Geology #Blacksky #Rockhound
Franklinite-willemite-calcite rock under ultraviolet black light from New Jersey, USA
Red fluorescence = calcite
Green fluorescence = willemite
Black = franklinite
#Geology #Blacksky #Rockhound
Unearthed a rare geological gem in Arizona! This rock contains Wulfenite with fluorescent minerals like Willemite and Fluorite, creating a vibrant display of colors.
April 10, 2026 at 7:39 AM
Unearthed a rare geological gem in Arizona! This rock contains Wulfenite with fluorescent minerals like Willemite and Fluorite, creating a vibrant display of colors.
www.mineralcollection.eu/product/2320...
Willemite from the Preguiça Mine, Sobral da Adiça, Portugal
White fluorescent under SW
2.5 cm x 1.1 cm excl. box
6 gram incl. box
€ 15
#willemite #silicates #nesosilicates #portugeseminerals #fluorescentminerals #minerals #rocks #crystals #stones
Willemite from the Preguiça Mine, Sobral da Adiça, Portugal
White fluorescent under SW
2.5 cm x 1.1 cm excl. box
6 gram incl. box
€ 15
#willemite #silicates #nesosilicates #portugeseminerals #fluorescentminerals #minerals #rocks #crystals #stones
May 27, 2026 at 5:36 PM
www.mineralcollection.eu/product/2320...
Willemite from the Preguiça Mine, Sobral da Adiça, Portugal
White fluorescent under SW
2.5 cm x 1.1 cm excl. box
6 gram incl. box
€ 15
#willemite #silicates #nesosilicates #portugeseminerals #fluorescentminerals #minerals #rocks #crystals #stones
Willemite from the Preguiça Mine, Sobral da Adiça, Portugal
White fluorescent under SW
2.5 cm x 1.1 cm excl. box
6 gram incl. box
€ 15
#willemite #silicates #nesosilicates #portugeseminerals #fluorescentminerals #minerals #rocks #crystals #stones
Just starting with ultraviolet reactive visible light photography. This is a rock specimen of Willemite, Calcite, and Franklinite (from Sterling Hill Mine in New Jersey). Both images taken in visible light. The right image is lit with a shortwave (255nm) ultraviolet flashlight.
April 22, 2026 at 8:30 AM
Just starting with ultraviolet reactive visible light photography. This is a rock specimen of Willemite, Calcite, and Franklinite (from Sterling Hill Mine in New Jersey). Both images taken in visible light. The right image is lit with a shortwave (255nm) ultraviolet flashlight.
An interesting, local, artifact shaped from the classic Franklin Mine combination, Willemite & Franklinite in Calcite. Great contrast and UV reactivity. Photographed under under 254 Shortwave UV & Full Spectrum light. 🧪 #fluorescent #geology #minerals #nature #earthart #crystals
July 10, 2025 at 1:57 AM
254nm #Shortwave UV/Full Spectrum Light split-screen. The pinkish white to green is Willemite, what turns orange-red is Calcite and the non #fluorescent black #mineral is Franklinite. From the Sterling Mine, the other end of the Franklin Mine ore body, the type location for Franklinite. 🧪 #geology
January 11, 2025 at 8:10 PM
254nm #Shortwave UV/Full Spectrum Light split-screen. The pinkish white to green is Willemite, what turns orange-red is Calcite and the non #fluorescent black #mineral is Franklinite. From the Sterling Mine, the other end of the Franklin Mine ore body, the type location for Franklinite. 🧪 #geology
If haven't seen this before this is Willemite under low wave UV light 😃
November 29, 2024 at 7:55 AM
If haven't seen this before this is Willemite under low wave UV light 😃
268 of #365Minerals 🧪⚒️
Hodgkinsonite:
- A silicate mineral containing zinc and manganese
- Has only ever been found in the Franklin area of New Jersey
- Named after Harold Howe Hodgkinson (1886-1947), a mine superintendent who found the mineral at Franklin Mine, New Jersey #minerals
Hodgkinsonite:
- A silicate mineral containing zinc and manganese
- Has only ever been found in the Franklin area of New Jersey
- Named after Harold Howe Hodgkinson (1886-1947), a mine superintendent who found the mineral at Franklin Mine, New Jersey #minerals
September 25, 2025 at 9:08 AM
268 of #365Minerals 🧪⚒️
Hodgkinsonite:
- A silicate mineral containing zinc and manganese
- Has only ever been found in the Franklin area of New Jersey
- Named after Harold Howe Hodgkinson (1886-1947), a mine superintendent who found the mineral at Franklin Mine, New Jersey #minerals
Hodgkinsonite:
- A silicate mineral containing zinc and manganese
- Has only ever been found in the Franklin area of New Jersey
- Named after Harold Howe Hodgkinson (1886-1947), a mine superintendent who found the mineral at Franklin Mine, New Jersey #minerals
At the children's science center
November 23, 2025 at 6:43 PM
At the children's science center
272 of #365Minerals 🧪⚒️
Leucophoenicite:
- A manganese silicate mineral
- Forms in metamorphosed zinc-manganese ores
- Its name comes from the Greek words "leukos" (pale) and "foinis" (purple-red) because of its colouring #mineral #MineralMonday
Leucophoenicite:
- A manganese silicate mineral
- Forms in metamorphosed zinc-manganese ores
- Its name comes from the Greek words "leukos" (pale) and "foinis" (purple-red) because of its colouring #mineral #MineralMonday
September 29, 2025 at 9:28 AM
272 of #365Minerals 🧪⚒️
Leucophoenicite:
- A manganese silicate mineral
- Forms in metamorphosed zinc-manganese ores
- Its name comes from the Greek words "leukos" (pale) and "foinis" (purple-red) because of its colouring #mineral #MineralMonday
Leucophoenicite:
- A manganese silicate mineral
- Forms in metamorphosed zinc-manganese ores
- Its name comes from the Greek words "leukos" (pale) and "foinis" (purple-red) because of its colouring #mineral #MineralMonday
What makes rocks glow in the dark? Join us as we explore Franklin Mineral Mine, famous for its fluorescent minerals like calcite, willemite, and the rare Hardystonite in our latest #YouTube video. Discover how UV light reveals these glowing treasures!
#scicomm
youtu.be/OeQgra4IWpA
#scicomm
youtu.be/OeQgra4IWpA
January 7, 2025 at 9:35 PM
What makes rocks glow in the dark? Join us as we explore Franklin Mineral Mine, famous for its fluorescent minerals like calcite, willemite, and the rare Hardystonite in our latest #YouTube video. Discover how UV light reveals these glowing treasures!
#scicomm
youtu.be/OeQgra4IWpA
#scicomm
youtu.be/OeQgra4IWpA
November 27, 2024 at 6:43 PM
Ooh, so that looks not unlike the stuff from Franklin and Sterling Hill, NJ, "the fluorescent mineral capital of the world" -- which has red-fluorescing calcite, bright green fluorescing willemite, and black metallic-ish franklinite
www.naturesrainbows.com/post/2018/01...
www.naturesrainbows.com/post/2018/01...
Calcite, Willemite, Franklinite and Zincite: A Sterling Hill, NJ Classic
This is a classic, bright fluorescent specimen from the famous Sterling mine in Sterling Hill, Ogdensburg, New Jersey. This piece contains the three primary zinc ore minerals willemite, franklinite a...
www.naturesrainbows.com
October 26, 2023 at 4:43 AM
Ooh, so that looks not unlike the stuff from Franklin and Sterling Hill, NJ, "the fluorescent mineral capital of the world" -- which has red-fluorescing calcite, bright green fluorescing willemite, and black metallic-ish franklinite
www.naturesrainbows.com/post/2018/01...
www.naturesrainbows.com/post/2018/01...
99 of #365Minerals 🧪⚒️
Zincite:
- The rare crystal form of zinc oxide (ZnO)
- Its colour varies, red colouring is caused by iron and manganese
- Can be grown artificially
- Was originally called "red oxide of zinc"
- Was once used as a crystal detector in crystal radios #minerals
Zincite:
- The rare crystal form of zinc oxide (ZnO)
- Its colour varies, red colouring is caused by iron and manganese
- Can be grown artificially
- Was originally called "red oxide of zinc"
- Was once used as a crystal detector in crystal radios #minerals
April 9, 2025 at 9:02 AM
99 of #365Minerals 🧪⚒️
Zincite:
- The rare crystal form of zinc oxide (ZnO)
- Its colour varies, red colouring is caused by iron and manganese
- Can be grown artificially
- Was originally called "red oxide of zinc"
- Was once used as a crystal detector in crystal radios #minerals
Zincite:
- The rare crystal form of zinc oxide (ZnO)
- Its colour varies, red colouring is caused by iron and manganese
- Can be grown artificially
- Was originally called "red oxide of zinc"
- Was once used as a crystal detector in crystal radios #minerals
My cat does not think my time is well spent taking mineral pictures. He has food, I swear! Big black rock from Franklin, New Jersey is shot through with crystals of willemite (green under UV), calcite (orange-ish), and franklinite (no color under UV, but an important ore of zinc!)
January 24, 2025 at 5:19 PM
My cat does not think my time is well spent taking mineral pictures. He has food, I swear! Big black rock from Franklin, New Jersey is shot through with crystals of willemite (green under UV), calcite (orange-ish), and franklinite (no color under UV, but an important ore of zinc!)